The Jokers are unsympathetic store managers, forced to throw out a disruptive customer before dealing with the wrath and disdain of fellow patrons. Then, the guys must get a bystander to take their side during a heated argument with their fake spouses.

The Jokers are asking strangers to send an important text to their loved ones, and hunting for their missing kid using crazy descriptions. Then, tonight's loser will say "I do" to facing one of their toughest punishments yet.

Dwight tries to prevent Darryl's move to Athlead. Jim is forced to miss Cece's first recital when a big investor exits his new company, to Pam's intense disappointment. Nellie exposes Pete and Erin.

David Wallace tasks Dwight with finding a new part time salesman to fill in for Jim. Dwight assembles a super-team of his cronies, starting with Mose. Pam tries to figure out who will be her new desk mate.

When Pam asks the office to help her track down the vandal who defaced her mural, Dwight and Nellie spring to action. Darryl has difficulty dealing with Jim's cleanliness habits in their shared Philly apartment.

The office pairs off into pretend couples to take advantage of a Valentine's Day discount at a local mini-mall. Erin assures Pete she will break up with Andy when he returns, but he has good reason to doubt her.

Pam interviews for a job in Philadelphia with a manager who gives her déjà vu. Dwight brings Angela with him on a mission to clean his elderly Aunt Shirley. Andy returns from his long boat voyage.

Pam interviews for a job in Philadelphia with a manager who gives her déjà vu. Dwight brings Angela with him on a mission to clean his elderly Aunt Shirley. Andy returns from his long boat voyage.

Dwight travels home for a customary Schrute funeral. He and his siblings receive a surprise inheritance that's not entirely welcome. Back at Dunder Mifflin, Todd Packer tries to make amends for a lifetime of bad behavior.

Everyone in the office is excited when promos start running on TV for the documentary. Dwight makes Angela jealous when he starts dating a Brussels sprout farmer. Meanwhile Jim has a big meeting with Major League baseball player Ryan Howard.

When Hayley rejects Stan's advice, he decides to start a dry-cleaning business run by a bunch of strippers. But when the business fails miserably, he is forced to become a male stripper to make some extra money.

The Rapture happens on Christmas Eve, and Stan is left behind.

A bored Ross creates havoc in Joey and Chandler's lives. Rachel is disturbed by her date's inappropriate relationship with his sister.

On New Year's Eve, the friends make resolutions for the coming year but keeping them proves difficult.

Chandler's behavior toward his boss annoys Monica. Ross' latest romance astounds everyone.

Phoebe meets another long-lost relative. Joey wears a shoulder bag.

Chandler and Monica's relationship becomes less of a secret. Ross must prove to his boss that he's sane in order to return to work.

Chandler thinks Monica wants more from their relationship. Ross fails to impress his new neighbors.

Joey wonders if he is in love with Monica. Phoebe impersonates a police officer.

Rachel interviews for a great job but she may get it for the wrong reason. Monica competes to have a better relationship than Phoebe's.

Rachel submits to peer pressure at work. Joey and Ross' son audition for the same commercial but only one can get the part.

Ross' flirting technique fails to impress a cute pizza-delivery woman. A surprise awaits Joey when he tells everyone about his big television appearance.

The guys enjoy riding along with a police officer until a gunshot is heard. Rachel overhears a telephone message for Ross from his second ex-wife.

Phoebe's boyfriend wants her to move in with him. Ross and Joey involve Chandler and Monica in an obsessive game.

Joey's first major film role leads to an unexpected experience in Las Vegas. Phoebe can't remember why she hates Ross.

The gang travels to Las Vegas, Nevada, where more than one surprise awaits. After Ross misinterprets Rachel's actions, a war of public humiliation results.

Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Raj catches Anu with her ex-boyfriend, and Stuart doesn't want to move in with Denise.

Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Raj attempts to mend things with his ex-fiancée, Anu.

Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, who then try to kick Amy off the Nobel nomination. Bernadette has a big success at work, and Penny's going to be a part of it.

Sheldon is thrilled to help Bernadette and Howard navigate bureaucratic paperwork, until he discovers they are breaking the law. Leonard is disappointed when his friends exclude him from a scientific project.

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Howard, Bernadette, Anu and Raj turn Raj's canceled bachelor party into a couple's trip aboard the "vomit comet."

The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith. Deception and betrayal are the path to make it to the one open seat.

Penny and Bernadette go to San Diego for a pharmaceutical sales convention, leaving Howard in charge of the kids. Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it.

Pemberton and Campbell charm America on a publicity tour, so Sheldon and Amy bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Halley's fear of the dark leads to conflict for Howard, Bernadette and Stuart.

Ben Affleck stars in this action thriller as Christian Wolff, a math expert with high-functioning autism who's closer to numbers than people. Behind the cover of a small-town CPA office, Wolff works for the world's most dangerous criminals.

Ben Affleck stars in this action thriller as Christian Wolff, a math expert with high-functioning autism who's closer to numbers than people. Behind the cover of a small-town CPA office, Wolff works for the world's most dangerous criminals.

Monica and Chandler get lucky in Las Vegas, Nevada. Rachel makes Ross regret playing a prank on her. Joey schemes for fame and fortune.

Two of the friends leave Las Vegas married. Joey and Phoebe have a cross-country adventure.

Monica is bewildered by Rachel's reaction to a change in their living arrangement. Phoebe tries to make Ross confront his feelings for Rachel.

Despite Phoebe's admonitions, Ross makes a drastic decision about Rachel. Chandler and Monica bicker over their living arrangements.

Injured Joey must get an acting part in order to qualify for health insurance. Rachel finally learns the truth about her marriage to Ross.

Rachel forces Ross to terminate their marriage. Phoebe's first triplet baby-sitting experience proves stressful. Joey pretends to own a sports car.

The guys and the women prepare for big changes in their living arrangements.

Attention shoppers! The Jokers make mischief by taking unflattering pictures of grocery store patrons, then posing as horrible employees at the Yeti store. But tonight's loser must "meat" his fate in a jaw-dropping punishment.

Joey Fatone interviews the Jokers for a fake documentary, then the guys react to an overly emotional phone call for an underwhelming reason. One Joker checks out and is forced into being the world's worst grocery store employee in his punishment.

The Jokers pretend to be bellhops and need to do and say what they're told while assisting unsuspecting guests to their rooms. Then, the guys need to give away tickets to an absurd made-up show they can no longer see.

And ACTION! The Jokers play unprofessional actors in a fake commercial, then make wild assumptions about other mallgoers. But one Joker breaks and is tasked with becoming the strictest security guard imaginable in his punishment.

"Stairmageddon" strikes the office when the elevator goes out and everyone is forced to take the stairs. Dwight forces Stanley to do an important sales call. Pam and Jim find comfort in talking with Nellie and Toby about marital troubles.

Dwight and Angela compete in an office-wide paper airplane contest with a cash prize. Local talent agent Carla Fern helps Andy with his first acting role in an industrial film. Jim and Pam try to use new skills they have learned in couples counseling.

Andy tries to work up the nerve to quit his job and pursue his dreams of stardom. Dwight finally receives his karate black belt from his new sensei and has his best day ever at work. Jim returns to Scranton to spend more quality time with Pam.

Andy tries to work up the nerve to quit his job and pursue his dreams of stardom. Dwight finally receives his karate black belt from his new sensei and has his best day ever at work. Jim returns to Scranton to spend more quality time with Pam.

Chandler learns how obsessively neat Monica is when he attempts to do her a favor. Joey desperately tries not to flirt with his sexy new roommate.

The guys explore their femininity. Phoebe causes trouble when she kisses someone at Rachel's work.

On Thanksgiving, Chandler tries to gain favor with Monica's parents but an old secret involving Ross causes problems. Undomestic Rachel's dessert proves intriguing.

Joey plots the perfect opportunity to kiss Janine. Ross and Monica resurrect their dorky high school dance routine for a television special.

Joey finally dates Janine but she doesn't like his friends. Rachel worries Phoebe won't appreciate the way she furnishes their apartment.

Ross and Chandler bicker over which of them created a raunchy joke. Phoebe antagonizes Monica and Rachel with her candor. Joey reluctantly takes a waiter job at Central Perk.

Rachel tries to help her pampered younger sister, Jill, find independence but Jill flirting with Ross is not part of the plan. Monica won't admit that she is sick.

Rachel's sister Jill wants Ross but not for the reasons he thinks. Chandler astounds the others with his inability to express emotions. Is Phoebe starring in pornography?

The friends fantasize Rachel and Ross are in respective loveless marriages. Monica is an overweight virgin. Poor Chandler works for television star Joey, and Phoebe is an overstressed stockbroker.

In the speculative fantasy, Ross initiates romantic advances with his wife Carol. Chandler and Monica help each other overcome loneliness, Rachel learns the truth about her husband and Phoebe sneaks out of the hospital.

Chandler gets into trouble with his homemade gift for Monica. Ross tries to teach martial arts to Rachel and Phoebe. Joey hires a look-alike.

When a fire damages their apartment, Rachel and Phoebe must choose between living temporarily with Joey or Monica. Ross gets into trouble where he teaches.

Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj and Howard going to a bar's Ladies' Night.

An appearance in traffic court comes at the worst possible time for Sheldon, the same day Stan Lee is appearing at the comic book store.

Sheldon and the gang celebrate his birthday and he's surprised by a special guest.

As the office readies for the premiere of the documentary that night, Jim convinces Dwight, who is planning to propose to Esther, that he needs an Assistant to the Assistant Regional Manager, and holds tryouts to find the best candidate.

As the office readies for the premiere of the documentary that night, Jim convinces Dwight, who is planning to propose to Esther, that he needs an Assistant to the Assistant Regional Manager, and holds tryouts to find the best candidate.

Months after the airing of the documentary, the workers of Dunder Mifflin, past and present, gather for a wedding and a final round of interviews. Mysteries are solved, hatchets are buried, pranks are prunked.

Months after the airing of the documentary, the workers of Dunder Mifflin, past and present, gather for a wedding and a final round of interviews. Mysteries are solved, hatchets are buried, pranks are prunked.

Meet 9-year-old Sheldon and his family on the series premiere! Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

Sheldon goes on a quest to make his first friend.

Sheldon's faith is shaken when his dad goes to the hospital.

Ross worries when his student/girlfriend goes on vacation with her wild friends. Meanwhile, Joey's refrigerator breaks down.

Primarily composed of clips from earlier shows, Joey auditions for a major television role but Chandler almost ruins everything.

Ross is nervous about meeting Paul, Elizabeth's dad, and invites the gang to the coffeehouse for moral support.

Elizabeth and Ross decide to hide their relationship from her father and head up to his cabin for the weekend.

Phoebe helps Chandler pick out an engagement ring for Monica.

Chandler plans to propose to Monica.

Monica asks Chandler to be her husband.

Monica excitedly reveals her good news to everyone but Rachel and Ross upstage her. Chandler has trouble making love.

Monica is outraged to find out what her parents did with her wedding fund. Joey discovers Rachel's late-night reading material.

Monica desperately tries to figure out a secret cookie recipe. Chandler fails to impress Monica's father.

Rachel is in a quandary when a sexy but unqualified man applies to be her assistant. Chandler, Monica and Ross tell embarrassing secrets about one another.

Joey tries to teach Chandler how to smile for the camera. Phoebe and Ross bicker over their divorcing friends.

Amy has a meltdown due to the pressure associated with winning a Nobel Prize. Raj and Howard try to relive the good old days after Howard buys a scooter that looks like the one he had years ago.

Raj is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Leonard wants to be the principal investigator on a plasma physics study.

Kripke has proof that Dr. Pemberton plagiarized his thesis, and Sheldon and Amy aren't sure whether they should turn him in or not. Howard is surprised to learn that Bernie wasn't the only waitress at the Cheesecake Factory who had a crush on him.

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there. Denise and Stuart overstay their welcome at the Wolowitz house.

Amy and Sheldon wait for the news. Howard and Bernadette leave their kids. Leonard and Penny keep a secret.

Bernadette and Howard leave their kids for the first time, Penny and Leonard try to keep a secret, Sheldon and Amy stick together, and Raj makes a new friend as the gang travels together into an uncharted future.

Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.

Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.

Leonard asks a work colleague out after he finds out Penny is seeing someone.

Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine.

Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz and Koothrappali through a new test of their social skills.

When Wolowitz goes AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

When a documentary crew comes to the offices of Dunder Mifflin to observe the employees and learn about modern management, manager Michael Scott tries to paint a happy picture of his domain, but his jokes keep falling flat.

Michael's offensive behavior prompts the company to sponsor a seminar on racial tolerance and diversity. Jim has trouble securing his biggest yearly commission.

When forced to pick a cheaper health care plan, Michael, rather than lose popularity points with his staff, shirks the responsibility to Dwight.

Amid rumors of downsizing, Michael tries to raise morale with a birthday party, even though it's no one's birthday. Dwight asks Jim to form a "Survivor"-style alliance.

Michael and gang play the warehouse workers in a not-so-friendly game of basketball. Overly confident, Michael bets that the losers will have to work on Saturday.

Dwight, Michael, and Jim all vie for the attention of an attractive woman who comes to the office to sell purses.

The Dunder Mifflin employees suffer through the annual office awards ceremony, The Dundies, hosted by pompous boss Michael Scott at their local watering hole -- a Chili's restaurant.

Michael Scott, king of the inappropriate e-mail forward, hits a new low when his obnoxious best friend, sales rep Todd Packer, drops by for a visit.

Michael has a panic attack when he tries to close the deal on his new condo. Meanwhile, while he and Dwight are away from the office, Jim and Pam organize an office Olympics where employees compete in ridiculous games.

A fire in the kitchen forces the employees of the Dunder Mifflin paper company to the parking lot where Jim suggests a game of Desert Island, and they learn more about each another than they may have cared to.

Michael is forced by corporate to fire someone, putting a damper on the Halloween festivities at Dunder-Mifflin.

After Dwight karate punches Michael, Jim organizes a lunchtime rematch at Dwight's dojo, where Pam becomes annoyed when Jim gets too friendly.

When Michael and Jan go after a new client, Michael surprises his boss -- in more ways than one. Meanwhile, Jim finds a screenplay written by Michael -- and the cubicle jockeys at Dunder-Mifflin have a hilarious time acting it out.

On performance review day, the employees of Dunder Mifflin meet with Michael to discuss their work performances, but the only thing on Michael's mind is his own impending review from his own boss Jan later that day.

Sheldon refuses to eat solid food after a choking scare.

Sheldon helps his father coach the football team.

Sheldon is determined to prove a NASA rep wrong.

Meemaw refuses to give George Sr. her brisket recipe.

George takes his sons to see a space shuttle launch.

Sheldon tutors his brother when his grades threaten football.

Rachel and Phoebe compete to be Monica's maid of honor but Monica doesn't want to make the decision. Chandler tries to apologize to a girlfriend from his youth.

Chandler's former girlfriend manipulates Chandler and Monica. Rachel and Phoebe meddle in Joey's relationship.

Chandler's irrational fear causes problems when Phoebe brings home a cute dog. Rachel's assistant gives her a Thanksgiving surprise.

Rachel gets in trouble for dating her assistant. Monica tries to become friendlier with her neighbors. Phoebe needs lessons in riding a bike.

Ross teaches Ben about Chanukah. Phoebe worries that Rachel prefers living with Joey.

Phoebe's former boyfriend returns for one night only but Joey could ruin their plans. Monica plots revenge on her cousin's wedding day.

Monica falls asleep during sex. Rachel argues with Tag. Ross and Joey get stranded on the roof.

Phoebe becomes involved with a suicidal office worker. Rachel breaks Joey's favorite chair. Monica's beloved childhood belongings are destroyed.

Rachel's 30th birthday prompts the friends to reminisce about their own 30th birthdays.

Joey's character on a daytime drama becomes more prominent to the chagrin of the show's diva star. Phoebe and Rachel argue over who should return a sexy man's misplaced cell phone to him.

Chandler finds out who Monica really wanted to have sex with on the night they became lovers. Ross is furious after Rachel teaches Ben practical jokes.

Monica battles another shopper for the perfect wedding dress. Ross and Joey compete for the same woman.

When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and Penny's intervention only exacerbates the situation.

Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated for its own good.

With his friends knowing how sour he acts when sick and avoiding him as a result, Sheldon is nursed by Penny, who hasn't a clue what she's in for.

With Sheldon rattled and impossible to be around after meeting Dennis, a 15-year-old physicist who's smarter than he, the rest of the guys search for a way to eliminate the threat.

Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

Morale at the office Christmas party hits an all-time low after Michael suggests a game of Yankee Swap with the $20 secret Santa gifts -- and everyone vies for the iPod he bought for Ryan.

Michael takes the Dunder Mifflin crew on a freezing motivational booze cruise in January in an attempt to get them to accept his theories on leadership. To his frustration, they find the ship's captain more inspiring.

Michael demands attention from the entire Dunder Mifflin office after he has a freak accident with his George Foreman grill, and Dwight begins behaving strangely following a minor car crash.

Jim is worried Michael is going to tell others that he likes Pam, so he has to unfortunately go along with being his best friend, which includes a lunch trip to Hooters.

When someone soils the carpet in Michael's office, Michael begins to question his popularity with his staff. He temporarily takes Jim's desk in the bullpen in order to bond with his troops -- and initiates a sales contest to boost morale.

When Jan visits the office to conduct a women in the workplace seminar with the female Dunder Mifflin employees, Michael takes the guys down to the warehouse for some male bonding.

When Michael visits Dunder Mifflin corporate headquarters in New York on Valentine's Day, he and Jan are both in for a surprise. Meanwhile, back in Scranton, the office staff celebrates Valentine's Day grade school style.

Dunder Mifflin salesman of the year Dwight Schrute must somehow conquer his fear of public speaking for the big convention and turns for help to the worst possible teacher, Michael.

A routine office day is upended when children descend upon Dunder Mifflin for Take Your Daughter to Work Day. Michael is surprised when he strikes up a friendship with the five-year old daughter of his sworn enemy, Toby.

In celebration of his birthday, Michael takes the Dunder Mifflin gang ice skating, while Kevin nervously waits for some medical test results.

When Dwight finds half a joint in the Dunder Mifflin parking lot, he puts on his Volunteer Sheriff's uniform and launches a full investigation -- prompting Michael to ask for an unusual favor. Pam playfully issues a challenge to Jim.

Sheldon interviews with a school for gifted children.

A trip to Sunday school inspires Sheldon to study religions.

Mary and the twins move in with Meemaw after a fight.

Sheldon's germophobia lands him in detention.

Sheldon and Missy are left home alone for the first time.

Sheldon and Tam make a new friend.

Joey overreacts at a daytime drama awards show.

Monica's gorgeous cousin unwittingly wreaks havoc on Chandler and Ross. Rachel and Phoebe hastily plan a surprise bridal party for Monica.

Rachel reveals a titillating secret about her and a former sorority sister. Ross and Chandler compete for wedding tuxedos.

As Monica and Chandler prepare their wedding vows, they and their friends reminisce.

Chandler confronts his estranged cross-dressing father. Rachel gets into trouble driving Monica's Porsche.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

Monica remains blissfully unaware of the potential disasters on her wedding day.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

Rachel debates whether she should break the news to her baby's father.

The real father of Rachel's baby is revealed. Monica and Chandler struggle to make their honeymoon flight.

Ross reveals that he videotaped a sexual encounter between Rachel and him.

Ross is horrified when Rachel goes on a date with a soap-opera star. Phoebe is attracted to a clumsy chef whom Monica wants to fire.

Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

When the delivery of a full-size prop of 1960's "The Time Machine" causes Penny to miss work, she scolds Leonard about his sci-fi collectibles. He decides it's time to give up such childish pursuits.

The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her.

Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistently pesters Sheldon for advice.

Full of confidence following being named one of People's 30 to Watch Under 30, Raj hits on Penny and becomes impossibly arrogant.

When Michael takes over conflict resolution duties from HR, chaos ensues at Dunder Mifflin.

In the season finale, Michael and the Dunder Mifflin crew hold a Casino Night for charity in their warehouse and take some big gambles.

When Michael unintentionally outs a gay employee, he stumbles through a sensitivity mine-field. Also, we find out what happened with Jim and Pam.

After meeting Jan in Philadelphia for the annual Northeastern Mid-Market Office Supply Convention, Michael enlists Dwight's help in organizing a party in his room for fellow conventioneers. Meanwhile, Ryan and Kelly join friends out on a double date.

Fed up with Michael's antics in the office, Angela pushes Dwight to take action against him. Meanwhile, Pam internet shops and has a fashion show at lunch and plays video games and gets killed again and again in virtual reality.

After learning that the former regional manager has tragically died, Michael attempts to compel an appropriate show of grief from the Dunder Mifflin staff as he searches for the right way to honor a company man.

New full-time employee Ryan anxiously accompanies Dwight on his first sales call, but is taken aback by the odd series of challenges Dunder Mifflin's top salesman puts him through along the way, including a side trip to the Schrute family beet farm.

Michael encourages the entire Scranton branch to support Kelly by celebrating the Hindu Festival of Lights. As Ryan nervously faces Kelly's family at the event, Michael, new girlfriend Carol and the staff sample a range of Indian culture and cuisine.

When Jan tells Michael that the Scranton branch will be shutting down, Michael strives to keep his staff's spirits up. Meanwhile, everyone privately begins to envision how their lives will change in the aftermath.

The Scranton branch and the Stamford branch of Dunder-Mifflin are merged, bringing old friends Jim and Pam back together after months apart. Michael and Dwight and the other employees deal with the changes.

Michael tries to be supportive after learning that one of the new employees is an ex-convict, but gets upset when the staff starts to compare the office to prison. Meanwhile, Jim "coaches" Andy when he decides to make a play for Pam.

Strife on the party planning committee results in two competing Christmas parties, while Michael is dumped for the holidays. Michael sends out an inappropriate photoshopped Christmas card and gets his heart broken for the holidays by girlfriend Carol.

Strife on the party planning committee results in two competing Christmas parties, while Michael is dumped for the holidays. Michael sends out an inappropriate photoshopped Christmas card and gets his heart broken for the holidays by girlfriend Carol.

Still in "vacation mode" after his trip to Jamaica, Michael tries to hang on to his relaxed island vibe despite a wave of office hassles. But it becomes too much when an e-mail containing a racy vacation photo is forwarded around the office.

On Andy's suggestion, Michael has staffers team up for sales calls, leading to some interesting, insightful moments in the field. Meanwhile, Dwight attempts to cover for Angela after she misses an important deadline. Karen receives surprising information.

Jason Alexander guest stars as Sheldon's drama teacher.

Sheldon faces an unlikely bully.

Sheldon declares his independence from Mary.

Wallace Shawn guest stars as Sheldon's college professor.

Sheldon faces his fear of a neighbor's dog.

Sheldon obsesses over Meemaw and Dr. Sturgis.

At Monica's Halloween party, Phoebe meets her twin sister's fiance and finds that she is attracted to him.

Rachel wants to find her own apartment. Phoebe is ecstatic when Eric dumps Ursula to date her.

Rachel tells her belligerent father that she is pregnant with Ross' child.

Monica encounters a high-school friend and invites him to Thanksgiving Day dinner.

Chandler is angry when Monica buys expensive boots. Phoebe tries to get tickets to a Sting concert.

Ross' new girlfriend orders Christmas cards with a photo of them on the cover.

Rachel joins Joey for a night out in order to prepare him for a big date.

Monica blabs her suspicions when she mistakenly believes Joey is infatuated with Phoebe.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey tells Rachel that he is in love with her.

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey. Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

An intervention is used to try to force Sheldon to overcome his fear of driving.

Sheldon and his friends are mystified when a younger undergraduate student is attracted to him.

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

Sheldon wants to use an alternate version of rock-paper-scissors to help resolve conflicts. A girl Wolowitz has a major crush on falls for Leonard.

Sheldon is over-exuberant that Leonard finally has a girlfriend matching his high standards.

Leonard seeks Penny's counsel when his relationship with Stephanie takes off faster than he'd like. Sheldon's hypochondriac tendencies get the better of him.

Sheldon irks the gangs with his obsession with proper Christmas gift protocol. Leonard's crushed when Penny dates a colleague of his.

Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of the guys are depending on him for.

Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends.

When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.

A visit from Leonard's mother ends up bringing him and Penny closer.

Paintball leads to a squabble between Sheldon and Penny as well as romance between Howard and Leslie.

The gang is thrilled when they see Terminator: The Sarah Connor Chronicles' Summer Glau is also aboard their train to San Francisco for a scientific symposium. Sheldon frets over having forgotten a paper he wants to present to George Smoot.

Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge.

Oscar returns from his long vacation with mixed emotions on whether or not he still wants to be a part of the office. Jim turns to Karen and Pam for help to stage a prank on a new target.

Acting on bad advice from his friend Todd Packer, Michael brings two "adult" performers into the office -- a stripper and Ben Franklin -- in honor of Phyllis' wedding shower. Meanwhile Karen confronts Pam about her past with Jim.

Phyllis regrets giving Michael an important job at her wedding after several embarrassing moments. Pam has flashbacks of her own wedding planning when she sees Phyllis's decorations. Meanwhile, Dwight is determined to catch wedding crashers.

Ryan invites Michael to be a guest speaker at his business school. Meanwhile, Dwight battles a bat that gets loose in the office while Pam invites co-workers to her first art show.

Michael and Jan go public with their relationship during a party at their CFO's home.

Darryl decides to meet with Michael to negotiate a pay increase. Meanwhile, Jim deals with the consequences of Pam's confession to Roy.

Andy returns to the office after anger management training, determined to make a fresh start with the Dunder-Mifflin employees. At the office it's safety-training day and Michael and Dwight are on a mission to illuminate the dangers of the workplace.

The office is in crisis mode after a large shipment of Dunder Mifflin paper is accidentally sent out with an obscene watermark and Michael tries to manage the media with an impromptu press conference.

Outrage breaks out in the office after Phyllis gets an unexpected eyeful from a flasher. Michael makes some important personal decisions when he takes the women on a special outing. Meanwhile, Dwight and Andy work on catching the predator.

Michael is being considered for a position in Corporate and has to recommend his replacement. While the group expects a fun outing at Lake Scranton, Michael has planned a day of Survivor-like competitions to find his successor.

A job opening in Corporate puts coworker against coworker as Michael, Jim, and Karen all head to New York for final interviews. Dwight's new regime institutes sweeping reforms, Pam plays an interesting role, and Jan comes in with exciting news.

A job opening in Corporate puts coworker against coworker as Michael Jim and Karen all head to New York for final interviews. Dwight's new regime institutes sweeping reforms, Pam plays an interesting role and Jan comes in with exciting news.

When Francine demands that Stan get rid of his gas-guzzling SUV because it's draining the family of money, he hatches a plan with Roger at the local horse track to avoid giving up his ride.

Stan puts down liberal social programs because he thinks they're a waste of money and gives Francine a hard time for lending a helping hand at the local homeless shelter.

Sheldon interferes in Meemaw's romantic relationships.

Sheldon dismantles the refrigerator to stop an annoying hum and then must get a paper route to pay for the repairs.

When Dr. Sturgis bonds with Paige, another 10-year-old genius, Sheldon's jealousy leads Meemaw to intervene. Meanwhile, Mary invites Paige's family over for a play date.

When Mary's faith is shaken by a tragedy in the community, Sheldon becomes an unlikely ally.

Phoebe brings her annoyingly upbeat boyfriend to the 35th anniversary of Monica and Ross' parents, who urge Ross and pregnant Rachel to pretend to be married.

When Soap Opera Digest requests an interview, Joey enlists his friends to make sure he does not say anything that could cost him his role.

During her baby shower, Rachel realizes she is unprepared to be a mother and accepts her mother's offer to move in to help with the child.

A food critic blasts Monica's cooking in a newspaper review. A cute saleswoman riles Rachel when she flirts with Ross, and Phoebe coaches Chandler for a job interview.

Overdue Rachel tries everything to rush the delivery of her baby.

The friends cause havoc in the maternity ward as Rachel begins childbirth.

The friends cause havoc in the maternity ward as Rachel begins childbirth.

Joey finds himself engaged to Rachel soon after she delivers her baby girl, while Phoebe assumes Ross is the one who proposed.

Joey seeks forgiveness from Ross, while Rachel tries to quell Emma's incessant crying.

Emma's pediatrician drops her as a patient because of Rachel's constant calls.

Monica fears Chandler has a sexual fetish involving sharks.

Famished Phoebe waits for tardy friends to arrive at her birthday dinner.

Ross ridicules Rachel's choice of a male nanny.

Chandler and Joey find a videotape while checking out Richard's apartment. Ross sings Emma an off-color lullaby.

Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of.

A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj and Howard going to a bar's Ladies' Night.

Leonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay: Penny's.

Leonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the International Space Station.

The guys receive a prestigious offer to work over the summer at the North Pole, and Penny's resultant behavior leaves Leonard unsure if he should go.

Discovering Leonard, Raj and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.

Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.

Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny.

Less than 24 hours after being paroled, suave criminal Danny Ocean handpicks a top-notch team of smooth operators to pull off the ultimate Las Vegas heist in this stylish remake of the 1960 Rat Pack classic.

George Clooney and his merry band of crooks come out of retirement in this sequel to Ocean's Eleven. Caught by the mogul they robbed of $160 million three years ago, Danny Ocean and his crew have to plan an even bigger heist to pay back the money.

In the third installment of the saga, George Clooney, Brad Pitt and Matt Damon return as the usual expert thieves with a different goal: to return to Las Vegas and exact revenge on the mogul (Al Pacino) who betrayed one of their own.

The Jokers' "moms" are in town! However, they're helicopter parents meeting the Joker's "girlfriend" for the first time. The Joker must lie to his mom by convincing a stranger to be their girlfriend and agree to join them at a Broadway show.

The Jokers are asking strangers to send an important text to their loved ones, and hunting for their missing kid using crazy descriptions. Then, tonight's loser will say "I do" to facing one of their toughest punishments yet.

The Jokers are back working as dry cleaners and TV producers, but one of them can't keep it together and must endure concertgoers who have escaped their enclosures.

Sal, Q and Murr kick off another season of antics by getting themselves stuck in a vent system and confusing customers at a bagel shop. Then, our losing Joker will face humiliation in a punishment that's tough to swallow.

Rachel has a bone to pick with her self-centered sister on Thanksgiving.

Rachel impulsively gives her telephone number to a handsome guy but worries he will call when Ross is there.

Monica fears the worst when she learns Chandler will be spending Christmas in Tulsa working on a deadline with a beautiful co-worker.

Rachel crosses swords with her temporary replacement at the shop. Phoebe wreaks havoc on the set of Joey's soap opera.

Monica invites Rachel's workplace rival to her birthday party. Joey flirts with Emma's new nanny, and Phoebe and Mike take care of a litter of rats.

Monica exults in the applause she receives on karaoke night, unaware that the cheering audience can see through her blouse.

Joey and Phoebe conspire to send Rachel and Ross on disastrous blind dates.

Joey stumbles upon a way to impress a famous actor during an audition. Ross learns the identity of a long-ago mugger, and Chandler accepts an internship at a shoe company.

Both Monica and Chandler secretly approach Joey for a loan. Phoebe invites Mike to move in with her, and Rachel baby-proofs the apartment.

Ross and Chandler trade barbed insults on their alma mater's Web site.

After reconnecting with an old friend via Facebook, an accountant is thrown into the world of international espionage. The former high school classmate, who was bullied back in the day, is now a contract killer for the CIA.

Less than 24 hours after being paroled, suave criminal Danny Ocean handpicks a top-notch team of smooth operators to pull off the ultimate Las Vegas heist in this stylish remake of the 1960 Rat Pack classic.

George Clooney and his merry band of crooks come out of retirement in this sequel to Ocean's Eleven. Caught by the mogul they robbed of $160 million three years ago, Danny Ocean and his crew have to plan an even bigger heist to pay back the money.

In the third installment of the saga, George Clooney, Brad Pitt and Matt Damon return as the usual expert thieves with a different goal: to return to Las Vegas and exact revenge on the mogul (Al Pacino) who betrayed one of their own.

After reconnecting with an old friend via Facebook, an accountant is thrown into the world of international espionage. The former high school classmate, who was bullied back in the day, is now a contract killer for the CIA.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands. NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

Anthony Davis pranks NFL star linebacker Daiyan Henley with a lost-pet charity gone wrong, while pro-wrestling icon Sting pushes fellow wrestler Darby Allin into a tense moral standoff after they discover a bag of stolen cash just as the police arrive.

The Jokers are unsympathetic store managers, forced to throw out a disruptive customer before dealing with the wrath and disdain of fellow patrons. Then, the guys must get a bystander to take their side during a heated argument with their fake spouses.

The Jokers are back as wacky inventors pitching a whole new line of AI-themed gadgets. Then, they fill out bogus incident reports with unsuspecting deli customers. The loser will be forced to demonstrate mentally absurd and physically grueling "apps."

The gang buys scads of lottery tickets for the multimillion-dollar jackpot.

Rachel's visit to a soap opera set inspires her to dream about Joey. Chandler takes Ross on a weekend getaway after Monica cannot take time off from work.

Ross invites an attractive paleontologist to a rooftop Days of Our Lives party being thrown by Joey.

Monica and Chandler run into an old acquaintance when they secretly go to a fertility clinic. Ross helps Joey woo the same professor he wants to date.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker. David prepares to propose to Phoebe, but ex-boyfriend Mike is not yet out of the picture.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David prepares to propose to Phoebe, but ex-boyfriend Mike is not yet out of the picture.

In Barbados, Monica, Chandler and Phoebe eavesdrop on their friends' passionate encounters. Monica styles her hair to look like a blowfish, and Phoebe and Mike rekindle their romance.

Ross drinks too much alcohol at dinner with Rachel, Joey and Charlie. Frank Jr. cannot cope with his precocious triplets.

Rachel and Joey nervously anticipate their first real date. Monica and Phoebe try to avoid an obnoxious friend with a fake British accent, and Ross emerges from a tanning booth with a two-toned appearance.

An X-rated cake is delivered to Emma's first birthday party.

Rachel convinces her sister to baby-sit over Ross' protests, and Joey writes a letter to an adoption agency on Monica and Chandler's behalf.

The son of a human lighthouse keeper and the queen of the lost city of Atlantis, young Arthur Curry needs his superhuman abilities of the sea to help him stop the diabolical plans of his power-mad half-brother Orm.

Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny.

Sheldon looks forward to squaring off against an actor from the Star Trek universe he holds enmity towards in a fantasy card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers.

Leonard, hoping to fit in with Penny's football-loving friends, gets tutored in the sport by Sheldon. Raj is infuriated when Wolowitz's skirt-chasing leads to the loss of his prized patang.

Leonard and Penny's first big fight sees Sheldon playing mediator due to childhood trauma that's left him with an inability to be around loud verbal conflicts.

With the rest of the gang off on a desert camping trip to view the Leonid meteor shower, Sheldon must play hero after Penny slips in the tub and dislocates her shoulder.

Barry Kripke pranks Sheldon during his spot on NPR, leaving him with a taste for vengeance. Wolowitz, pressured by Bernadette to define their relationship, gets advice from a fantasy version of Katee Sackhoff.

Legends collide when Kong and his protectors undertake a perilous journey to find his true home. Joined by Jia, a young orphaned girl with whom he has formed a unique and powerful bond, they unexpectedly find themselves in the path of an enraged Godzilla.

An expedition to a mythical island finds the place crawling with prehistoric dangers, led by the giant ape, King Kong.

When George Sr. asks Sheldon to keep a secret from Mary, the stress of not being honest drives Sheldon to hide out at Tam's for his first sleepover.

Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, and Mary is unhappy when the test results go to Sheldon's head.

Mary clashes with Sheldon's drama teacher Mr. Lundy over plans for a Halloween haunted house fundraiser for the church. Also, Georgie falls for a rebellious teenage girl that Sheldon is tutoring.

Sheldon gets into trouble with fellow child genius Paige at the Science Museum, while George Sr. is forced to play therapist to Paige's bickering parents, Barry and Linda. Meanwhile, Mary, Georgie and Missy help Meemaw with a garage sale.

When Meemaw gives Sheldon his first video game, it takes over their lives. Meanwhile, George Sr. gets jealous when Georgie bonds with Herschel at the auto shop.

Sheldon studies his family for a psychology project when their Thanksgiving dinner turns into a family fight after George Sr. is offered a job in Oklahoma.

When Ross interviews with Charlie's ex-boyfriend for a prized grant, the doctor makes a shocking stipulation.

Monica and Chandler fuss over their apartment as they expect a visit from the adoption worker. Phoebe and Mike opt for a small wedding and donate the extra money to a children's charity.

Monica prepares a Thanksgiving feast for the gang, then becomes enraged when everyone shows up late. Phoebe convinces Rachel to enter Emma in a baby beauty contest.

A prospective birth mother labors under a misconception about Monica and Chandler's respective occupations.

Rachel and Phoebe spot Chandler getting into a vehicle with a mysterious blond woman.

Joey appears as a celebrity contestant on $100,000 Pyramid. Monica and Rachel hire an ungainly stripper for Phoebe's bachelorette party.

A blizzard causes Phoebe and Mike's wedding to spiral out of control. Uptight Monica steps in as her friend's wedding planner, then drives everyone crazy.

Monica and Chandler show Erica the sights but also learn their baby's biological father might be an unsavory character. Joey begs Phoebe to teach him how to speak French before an audition.

Rachel goes to a job interview at a restaurant and winds up sitting next to her current boss. Joey feels abandoned because Monica and Chandler are leaving.

Ross tries to win back Rachel's job with her former fashion employer. Phoebe tries to keep Joey from learning about his agent's death, and Monica and Chandler make a horrifying discovery.

One of the guys becomes offended when Rachel does not give him the same goodbye she gives the others.

The six friends say goodbye and embark on the next chapters of their lives.

A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.

Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university party.

A robbery of their apartment sees Leonard and Sheldon call on their friends to devise a security system.

Stuck on the solution to a physics problem, Sheldon seeks a number of alternative approaches to change his thinking and free the mental block -- including working with Penny at The Cheesecake Factory.

When Leonard is offered a trip to Switzerland on Valentine's Day to see a particle accelerator, he must choose between taking Penny or Sheldon.

An appearance in traffic court comes at the worst possible time for Sheldon, the same day Stan Lee is appearing at the comic book store.

The guys go to a garage sale and find a ring from the Lord of the Rings films, and the rare find threatens their friendship.

Sheldon's fear of speaking in front of large groups threatens his ability to accept an award, so the gang tries to help him get ready for the big night.

Sheldon gets to square off at the bowling alley against nemesis Wil Wheaton. Meanwhile, Leonard's miffed when Penny doesn't respond the way he hoped after saying "I love you."

Subsequent to Leonard and Penny's break-up, Sheldon tries to hide from Leonard and the gang that he had a friendly spaghetti dinner at Penny's.

Sheldon hosts a visiting female physicist, but her intelligence seems matched by her libido.

A squabble over the thermostat setting leads to Leonard going over to Penny's and recounting for her the story of how he met and moved in with Sheldon.

Howard and Raj try to find the perfect match for Sheldon by setting him up on an Internet dating site. Seeing her new boyfriend interact with the gang makes it clear to Penny that she can't go back to dating dumb jocks after dating Leonard.

For the first time, we see what happens over eight weeks of the summer, as a Dunder Mifflin weight-loss initiative causes the branch to diet and become obsessed with their weight. Michael pursues a friendship with his new HR rep, Holly.

For the first time, we see what happens over eight weeks of the summer, as a Dunder Mifflin weight-loss initiative causes the branch to diet and become obsessed with their weight. Michael pursues a friendship with his new HR rep, Holly.

Following Ryan's recent scandal at corporate, Holly must hold a business ethics seminar. The meeting gets out of control when Michael lets everyone speak freely about their unethical behavior at work.

Michael practices for the birth of Jan's baby by having Dwight go over possible birthing scenarios. Meanwhile, Michael tells Holly that he will pretend to dislike her for Jan's benefit.

Bazinga is born! When Sheldon learns that people with stunted childhoods can turn into social outcasts, he tries to act like a kid. Also, Meemaw and Dr. Sturgis's relationship is tested when she teaches him how to drive.

While Missy unknowingly becomes Sheldon's test subject, Georgie joins Mary's Bible study to spend more time with his crush, Veronica.

When Sheldon gets sick and has to spend a few days in the hospital, he turns into the world's worst patient and his behavior takes a toll on everyone. Also, Missy gets a taste of what life would be like without her twin.

While Sheldon attempts to build a nuclear reactor to power the neighborhood, Georgie is heartbroken when he learns that Veronica has a boyfriend. Also, a university party gets heated when Dr. Linkletter flirts with Meemaw.

Sheldon uses his new friendship with the school bully to boss Georgie around. Also, Missy steals Meemaw's makeup for Picture Day.

Sheldon and Dr. Sturgis have their first fight when Dr. Sturgis marks a question wrong on Sheldon's test. Mary takes over for Pastor Jeff when he's out sick.

The six friends say goodbye and embark on the next chapters of their lives.

After Rachel leaves her fiance at the altar, she moves in with Monica and finds that independence is not so easy, particularly without Daddy's credit cards.

Ross is stunned to learn his ex-wife is pregnant with their child. Monica's dinner for her overly critical parents is a disaster.

The group loves Monica's new boyfriend. Chandler resumes smoking, and Phoebe receives a large sum of money unexpectedly.

While the men attend a hockey game and end up at a hospital, the women spy on President Clinton's top aide, George Stephanopoulos, who lives across the street. Rachel receives her first paycheck.

While Phoebe and Chandler end their respective romantic relationships, Rachel and Ross do laundry together on their first date.

Joey gets a film role as a stand-in for Al Pacino's butt. Ross tries to be less conservative. Chandler has an affair with a married woman.

A citywide power outage leaves Chandler stranded in the vestibule for an automatic banking machine with gorgeous model Jill Connick. Ross tries to ask Rachel out on a date. Joey learns Monica used to be infatuated with him.

When Ross and Monica's grandmother dies, the whole gang attends the funeral service. Chandler questions his sexual persona when a co-worker wants to arrange a date for him with another guy.

Monica intends to host a cozy Thanksgiving feast in her apartment with her friends but her plans go awry, and the feast becomes a fiasco.

The friends promise to celebrate New Year's Eve without dates but soon all their plans change. Ross gets a pet monkey.

Chandler's flamboyant mother comes to New York for a visit. Phoebe and Monica cause a traffic accident.

Sheldon calculates that he'll be dead before technology exists to download his consciousness into a robot, so he goes on a binge of healthy living and ultra-safety.

Sheldon breaks up with Amy Farrah Fowler, and the guys worry when he starts replacing her with cats.

Wolowitz is embarrassed when a secret of his is revealed, and Sheldon and Raj battle at work.

Sheldon meets Amy Farrah Fowler's mother and comes to the realization he no longer wants to see Amy, and Leonard realizes everyone is in a relationship except for him.

When Raj's sister has a one-day layover, he forbids the others from hooking up with her, unaware she and Leonard already did long ago.

The rest of the gang is interviewed by the FBI for Wolowitz's security clearance with Sheldon accidentally letting slip some damaging information.

The guys camp out in line to see a print of Raiders of the Lost Ark with 21 extra seconds and are outraged to see Wil Wheaton and his friends being allowed to skip the line. Penny and Bernadette invite Amy to their girls night.

Penny asks Leonard to lie to her visiting father, while Howard, Raj and Bernadette spend all night looking through a telescope.

Amy crushes on one of Penny's dim ex-boyfriends, Zack. Raj and Wolowitz argue over who'd be the better superhero.

The guys get Zack and Penny to join their Justice League costume for a New Year's Eve bash at the comic book store.

Their friendship becomes strained when Sheldon tries to take over Leonard's creation of a smartphone application that solves differential equations.

Howard is jealous when Bernadette runs into her old boyfriend at a science event they're attending.

Sheldon wants acting lessons from Penny, hoping they will make him a better teacher.

After meeting at a fundraising gala, an aged but wealthy Caltech donor makes Leonard ponder if he's willing to have sex with her to secure another donation.

Michael helps Pam get a part time job at corporate so she can afford to go to art school. After the office gets robbed, Michael decides to hold an auction to raise money for all the items lost.

Pam is embarrassed when she is the only person at corporate wearing a costume on Halloween. Holly and Michael take the long trip to Nashua after they get some shocking news from corporate. Meanwhile, Dwight torments Andy and tries to get under his skin.

Dwight and Jim are shocked when they get the results of the annual customer survey report. Pam and Jim decide they want to spend every minute together using their Bluetooth phones. Meanwhile, Angela and Andy pick an unusual location for their wedding.

Michael is ecstatic when David Wallace decides to send him on a business trip to Canada. Andy and Oscar become unlikely friends when Michael decides to bring them along on the trip. Jim is counting down the days until Pam gets back from art school.

A mysterious person in the office has made a huge mess in the microwave and will not clean it up. Meanwhile, Michael has to come to terms with the fact that there have been certain personnel changes in his staff without his knowing.

Oscar informs Michael that the office must spend a $4,300 surplus or lose it in next year's budget. When Michael opens up the floor for suggestions, factions break out and officemates square off against one another in order to get what they want.

Phyllis' Moroccan-themed holiday party goes up in flames when Meredith's hair catches on fire and Michael is forced to deal with the accident. Meanwhile, Dwight corners the market on the hottest toy of the Christmas season.

The office is on eggshells because Andy still hasn't found out about fiancée Angela's affair with Dwight. When Michael spills the beans, Dwight and Andy take matters into their own hands.

Michael and Dwight go undercover to do a bit of industrial espionage on a paper company competitor. Meanwhile, the rest of the office holds a debate to settle the question: is Hilary Swank hot?

After Dwight's fire safety seminar goes awry, he must make amends to the stressed-out office. Michael tries a number of ways to get his employees to relax before discovering that he is the number one stressor at work.

After Dwight's fire safety seminar goes awry, he must make amends to the stressed-out office. Michael tries a number of ways to get his employees to relax before discovering that he is the number one stressor at work.

Michael goes on a speaking tour of the other branches to explain Scranton's relative success, accompanied by his driver, Pam. Back at the office, Dwight and Jim, now the heads of the party planning committee, forget a birthday, with severe consequences.

Michael and Pam continue their tour of the branches with Michael taking a lesson from their visit to Utica. Dwight and Jim struggle to fulfill their new party planning duties with a grumpy staff. Angela's new cat causes a stir.

It's Valentine's Day. Michael meets a mysterious woman at a Valentine's blood drive. Dwight and Kevin pair up with single women at the office "Lonely Hearts Party." Meanwhile Jim and Pam are banished from the office for being too publicly affectionate.

Things spiral out of control when Sheldon boycotts his favorite bread company and ends up on the local news. Meanwhile, Georgie offers Veronica a shoulder to cry on when she's dumped by her boyfriend.

Inspired by his hero, Albert Einstein, Sheldon tries his hand at the violin. Also, Mary and Meemaw secretly buy a pregnancy test when Mary thinks she's pregnant.

Sheldon moves in with Dr. Sturgis for the weekend to see what his life would be like in college. Also, a lonely Mary tries to bond with the other Coopers during Sheldon's absence.

Unhappy that school funds are going toward football rather than academics, Sheldon decides to run for class president.

Georgie is thrilled when Veronica stays at the Coopers' for a few days. Meanwhile, Meemaw and Dr. Sturgis celebrate their one-year anniversary.

The Coopers help a brokenhearted Pastor Jeff through a rough patch in his marriage. Meanwhile, Sheldon pressures church members for donations when Mary takes him to work for a day.

Rachel's Italian boyfriend tries to seduce Phoebe. Rachel accidentally reveals a secret to Ross. Monica's aunt refuses to take the lasagnas she ordered from Monica.

Chandler sees Rachel nude. Joey learns his father is having an affair.

On Valentine's Day, Ross meets his ex-wife while on his first date in nine years. The girls rebel by burning mementos of past relationships.

A restaurant owner interviews Monica for a chef's position. Ross asks Joey how to talk dirty to women.

Phoebe's twin sister causes confusion and conflict. Ross attends childbirth classes with his ex-wife and her girlfriend.

Rachel and Monica squabble over two handsome doctors. Ross ponders his impending fatherhood with his own father.

The women lose money in a poker game with the men. After getting advice from a champion card player, they demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party. Rachel learns that her former best friend is engaged to marry Rachel's former fianc?.

Rachel reunites with her duplicitous ex-fiance. Chandler agonizes about a woman who doesn't call him after the first date.

Monica meets a woman who helps her live out her fantasies. Ross' pet monkey becomes sexually mature and makes everyone crazy.

Monica finds out more than she wants to know about her latest love. Chandler's friends at work treat him differently since his promotion. Ross' ex-wife begins giving birth.

When Carol gives birth, Ross and Susan almost miss the event. Joey befriends an unmarried pregnant woman.

Howard contemplates a serious decision in his relationship with Bernadette, and Leonard and Raj's sister start seeing each other again.

Sheldon is in a crisis when he realizes he's not the epicenter of the group, so he decides to find new friends.

Leonard has a tough choice to make when Priya asks him to stop spending time with Penny, forcing him to choose between the two women, and Howard keeps pestering Sheldon with a magic trick.

The guys become sleuths to find out who hacked Sheldon's online-game account.

Sheldon and Amy decide to start rumors about themselves as a social test. Meanwhile, Howard takes his relationship with Bernadette to an even higher level.

Priya uses her legal expertise to rip apart Sheldon's roommate agreement, and the women take the flustered Sheldon out dancing.

Raj makes an attempt to cure his phobia of talking to women, and Penny spies on Leonard and Priya with the help of Bernadette.

Mrs. Wolowitz ends up in the hospital after Howard tells her he's marrying Bernadette. While there, Leonard stresses over Penny and Priya warming up to one another.

The Jokers are hitting the floor as restaurant owners of a New York pizzeria, forced to say and do whatever wacky things the other guys tell them to. Later, they're back at Tompkins Square bagels trying to hunt down a customer that left a scathing review.

The Jokers are back as wacky inventors pitching a whole new line of AI-themed gadgets. Then, they fill out bogus incident reports with unsuspecting deli customers. The loser will be forced to demonstrate mentally absurd and physically grueling "apps."

Michael causes a huge problem in the office when he comes up with the idea to put "golden tickets" into packages of paper for clients to redeem for discounts. Andy, Jim and Pam give Kevin differing advice on wooing a woman.

Michael has big plans for his 15th anniversary party at Dunder Mifflin, but is in for a shock when the new, no-nonsense vice president has some ideas of his own. Meanwhile, Jim's prank on Dwight has some unexpected results.

Michael's relationship with the new vice president becomes increasingly tense, as Michael finds an excuse to goof off even more than usual. Meanwhile, Pam faces the challenge of a new copier and Kelly develops a crush.

After getting off on the wrong foot with his new supervisor, Charles, Jim finds himself face to face with the new boss in a soccer game in the Dunder Mifflin parking lot. Meanwhile, Michael, afraid to face the workday, has trouble leaving his house.

Dwight and Andy strike up an unlikely friendship and plan a hunting trip. Regional Supervisor Charles asks Jim for a "rundown", and Jim spends his day trying to figure out what that is. Michael hosts a Paper & Pancakes luncheon.

Dwight's loyalty to Michael is tested when he finds a new hero in Charles. Meanwhile, Andy tries to provide for all of Jim's emotional needs.

Michael's new company struggles to make early morning deliveries, while the office tries to get their expense reports in on time after Angela enforces Dunder Mifflin's policy.

Michael has to mediate a dispute within his new sales team. Meanwhile, trouble brews in the office when several employees take the term "casual" Fridays too loosely.

Michael gets into the café/disco scene. Meanwhile, Pam and Jim decide to take a secret trip.

It's the annual Dunder Mifflin company picnic and Michael and Holly are reunited, and Michael has some big plans for her. Meanwhile, the office competes in the picnic's volleyball tournament.

Michael feels left out as the rest of the office gossips about the summer interns. While Michael searches for the next juicy rumor to share, Andy struggles with heterosexuality.

A request by Jim leaves Michael feeling insecure and defensive. Meanwhile, Pam deals with the guest list for the wedding, and Dwight convinces Toby to investigate Darryl's worker's comp claim.

David Wallace breaks the bad news that not everyone will get a raise this year. Dwight reaches his breaking point with Jim and looks to the rest of the office for allies. Pam would like cash instead of wedding gifts.

The office travels to Niagara Falls to celebrate Jim and Pam's wedding under strict orders not to mention Pam's pregnancy. Michael, Dwight, and Andy all want to hook up with guests at the wedding, where Michael and Dwight meet twins.

Sheldon invites the entire school to a party for the Nobel Prize announcements. Meanwhile, Meemaw learns more about Dr. Sturgis's past, and Georgie's desire for cable TV leads to a standoff between him and his dad.

Mary worries about Sheldon's mental health.

Sheldon takes his education into his own hands.

Sheldon leaves town after a fight with Meemaw and his parents.

On a science break, Sheldon discovers The Lord of the Rings.

Dr. Sturgis returns from the mental hospital.

Rachel finds out about Ross' secret love for her but another surprise awaits her.

Rachel gets an unpleasant surprise when Ross returns home. Phoebe has varied success cutting the friends' hair.

Phoebe unwittingly disgusts everybody. Joey competes with a fellow salesman.

The downstairs neighbor dies and bequeaths his strange possessions to Monica and Rachel.

Everyone is surprised when Phoebe's husband shows up.

The friends want to give Ross a birthday party but disagree about money. Monica gets promoted and learns a tough lesson.

Joey and Chandler try to attract women with baby Ben. Phoebe gets terminated from her singing job and replaced by a professional, Stephanie.

Dramatic developments occur in Ross and Rachel's relationship. Chandler regrets asking Monica to help him lose weight.

Rachel makes a painful discovery concerning Ross. Monica's new boss gives her an impossible task.

Phoebe learns the surprising truth about her father. Ross makes Monica's Christmas party guests miserable.

Joey gets a great acting opportunity. Rachel dates a guy who is amazingly similar to Ross.

Carol and Susan prepare for their wedding with some help from an uncomfortable Ross.

Raj moves in with Sheldon when Leonard and Priya's Star Trek bedroom fantasy is too much for him, and the guys tease Howard when Bernadette gets her PhD, making Howard the only one without a doctorate.

On the fifth season premiere, Penny worries that she's screwed things up permanently with her friends after her night with Raj, while Sheldon takes command of the paintball team.

A battle of wills between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya (Aarti Mann).

Attending a co-worker's wedding, Leonard and Amy (Mayim Bialik) get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz!

When Raj is upset he's the only one of the four guys who's not in a relationship, Penny sets out to find the perfect date, introducing him to Emily, a girl he can actually talk to!

Sheldon and Leonard get invited to a housewarming party at Wil Wheaton's house. Howard gets an out-of-this-world opportunity!

Sheldon craves attention from his visiting mother.

Sheldon tries to spook his friends on Halloween.

Bernadette and Penny shop for wedding dresses without Amy.

Sheldon must overcome his fear of birds.

Sheldon becomes jealous when Stuart asks Amy for a date.

Leonard comes face-to-face with his high school bully.

Sheldon gets in trouble with Amy, and it's up to Penny to teach him how to be a better boyfriend. Howard, meanwhile, must come to grips with Bernadette's dislike of children.

Everything might change when Leonard offers Penny a spur of the moment invitation to a romantic dinner for two on the 100th episode of the series.

The office travels to Niagara Falls to celebrate Jim and Pam's wedding under strict orders not to mention Pam's pregnancy. Michael, Dwight, and Andy all want to hook up with guests at the wedding, where Michael and Dwight meet twins.

Michael meets with an insurance salesman that visits the office and is later convinced by Dwight and Andy that he is part of the mafia. Erin accidentally ruins Pam's painting.

Michael shocks Jim and Pam when he reveals the identity of the new woman he has been dating. Dwight apologizes to Jim for years of torment with a strange peace offering.

It's Halloween and the office plans a "Haunted House" for the children in the community. And at an important business meeting, Michael falls into a koi pond. Meanwhile, Pam and Andy go cold calling to drum up more sales.

Jim and Pam are out of excuses so they have no choice but to go out with Michael and Helene. Meanwhile, Dwight is strangely doing nice things for everyone in the office.

Michael's world is rocked by troubling rumors about Dunder Mifflin. He forces the office into a day of strange diversions, upsetting Jim and leading others to wonder if Michael has gone insane.

Michael gets excited when he's invited by David Wallace to be honored on stage at the Dunder Mifflin shareholder meeting in New York, and he brings Andy, Dwight, and Oscar along for the ride. Meanwhile, Jim has a hard time getting Ryan to do work.

Michael is forced to face the music after he realizes he can't keep a promise he made to a group of kids 10 years ago. Meanwhile, Jim starts an employee of the month program to increase employee morale.

Michael is outraged when Jim allows Phyllis to be Santa at the office Christmas party. Jim and Dwight try to get everyone into the holiday spirit despite the uncertainty with Dunder Mifflin. Meanwhile, Oscar has a secret crush.

When a potential buyer comes to Dunder Mifflin, Michael, Dwight, Andy, and Pam pull out all the stops in hopes of impressing him with their high profile contacts. Michael reminisces about all the great times they have had in the office.

When Sabre comes in to take over Dunder Mifflin, Michael struggles to accept Sabre's new policies. Pam and Jim have an interview for a local daycare. Andy and Erin work on a welcome song for Sabre as Erin waits for Andy to ask her out.

The office is eager to welcome Sabre CEO Jo Bennett to Scranton, and are dazzled by her. But when Jo finds out there are two branch managers, she says either Michael or Jim must go back to being a salesman. Andy's Valentine's Day plan backfires.

As Valentine's Day approaches, a cyborg version of Stan attempts to steal Francine away from Stan; Roger directs a shot-for-shot remake of the movie "The Goonies."

Stan is appalled to discover that Roger - a "Miracle On Ice" hockey team member - used steroids; Hayley finds herself falling for Reginald.

Missy tries out for the baseball team.

Sheldon starts the first internet flame war.

The university tries to recruit Sheldon, through George.

Sheldon faces his fear of the swimming pool.

Ross searches for his former pet monkey. Joey dates an obsessed fan.

Ross spends some quality time with Marcel, his former pet monkey. Chandler gets a big surprise from a sexy former classmate.

Monica's old home video shows Ross' true feelings for Rachel. Joey gives a gaudy gift to Chandler.

Ross and Rachel encounter obstacles to romance. Monica becomes enamored with a handsome, older doctor.

Monica's parents find out about her middle-aged boyfriend. Chandler and Joey argue and it could mean the end of their living arrangement.

Joey wants to move back in with Chandler, but there's a new problem. Phoebe tapes a rock video. Ross upsets Monica.

Monica and Richard experience the same romantic problems as Rachel and Ross. Joey's ill-advised comments to a fan magazine threaten his acting career.

Chandler wants his annoying new roommate to move out. Joey's exorbitant bills come due. The women learn from a book about personal empowerment.

Monica's boyfriend impresses Chandler and Joey. Phoebe finds out what she missed as a child.

Two bullies eject Chandler and Ross from Central Perk. Phoebe meets a brother she never knew she had.

Rachel gets a surprise at her birthday party when her parents show up.

When Phoebe catches chickenpox, her chances for romance with a former lover are almost ruined. Monica worries that she is too strange for Richard.

Rachel is a bridesmaid at her ex-fianc?'s wedding. Monica and Richard's relationship is jeopardized when the subject of children is discussed.

Ross' secret fantasy doesn't stay secret for long after he confides in Rachel. Chandler resumes an old relationship.

Ross becomes frantic trying to get everyone ready to leave to hear his speech at the museum.

Leonard and Penny "beta test" their relationship.

Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Howard tries to pick his astronaut nickname. NASA astronaut Mike Massimino guest stars.

When Sheldon is forced to take a vacation by the university, he goes to work with Amy in her neurobiology lab.

When a corner office at the University opens up, Sheldon must compete for it with his office nemesis, Barry Kripke. Meanwhile, Penny receives an unusual gift from Amy.

A change in Sheldon's routine forces him to re-evaluate his entire life, when his barber is sick. Meanwhile, Howard rethinks his decision to go into space after astronaut training.

Sheldon chooses to participate in a guys-only weekend Star Wars gaming marathon rather than go with Amy to her aunt's birthday party -- and gets a lesson from Penny and Amy.

It's a dream come true for Sheldon when he has a close encounter with his hero, Mr. Spock -- legendary sci-fi icon Leonard Nimoy.

Sheldon has a chance to meet his hero, Stephen Hawking.

After a disastrous blind date, single parents Lauren and Jim agree on only one thing: they never want to see each other again. When they sign up separately for a family vacation, they're stuck sharing a suite at an African safari resort.

After a disastrous blind date, single parents Lauren and Jim agree on only one thing: they never want to see each other again. When they sign up separately for a family vacation, they're stuck sharing a suite at an African safari resort.

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottliab prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

Anthony Davis lures former NFL defensive lineman Gerald McCoy into a movie audition where he damages priceless superhero memorabilia, while NBA star Austin Reaves ignites controversy by prematurely crowning a winner in a charity endurance contest.

The Jokers' "moms" are in town! However, they're helicopter parents meeting the Joker's "girlfriend" for the first time. The Joker must lie to his mom by convincing a stranger to be their girlfriend and agree to join them at a Broadway show.

The Jokers play lawyers trying to convince an unsuspecting focus group to sign off on ridiculous terms and conditions before they go in. Then they put their family businesses to the test by asking strangers if their radio ad is good to stay on the air.

The Jokers are hitting the floor as restaurant owners of a New York pizzeria, forced to say and do whatever wacky things the other guys tell them to. Later, they're back at Tompkins Square bagels trying to hunt down a customer that left a scathing review.

The Jokers are back as wacky inventors pitching a whole new line of AI-themed gadgets. Then, they fill out bogus incident reports with unsuspecting deli customers. The loser will be forced to demonstrate mentally absurd and physically grueling "apps."

Monica wants to have a baby. A man is stalking Phoebe.

Chandler wants to commit to a relationship with Janice. Phoebe poses as Joey's agent.

Phoebe tries to be more friendly with her half-brother. Ross meets Isabella Rossellini.

The friends recall secrets from their pasts.

Joey sees Janice kissing her husband, whom she is divorcing while she dates Chandler. Rachel's father clashes with Ross.

Chandler and Janice make a difficult decision about their relationship. Monica accidentally injures Ben and tries to hide it from Ross.

Storm-chasing scientists head into the heart of the most lethal tornadoes to track nature's fury in this action-packed blockbuster with Helen Hunt and Bill Paxton.

Storm-chasing scientists head into the heart of the most lethal tornadoes to track nature's fury in this action-packed blockbuster with Helen Hunt and Bill Paxton.

The son of a human lighthouse keeper and the queen of the lost city of Atlantis, young Arthur Curry needs his superhuman abilities of the sea to help him stop the diabolical plans of his power-mad half-brother Orm.

On Thanksgiving, a good-natured football game between the friends reveals some serious rivalries.

Rachel wonders if she'll ever get another job after she quits Central Perk. Joey's new job selling Christmas trees upsets Phoebe. Ross breaks a little girl's leg.

Rachel meets a handsome stranger, who might help her career. Chandler gets into trouble with Joey's sisters.

Ross overreacts when Rachel starts working with a handsome guy. Monica becomes enamored with a sexy busboy.

When Monica and Richard accidentally meet, they decide to become friends with dire consequences.

Phoebe's ex-singing partner wants to make Phoebe's signature song, Smelly Cat, a commercial success. Chandler dates a woman with a handicap.

Phoebe becomes involved with a foreign diplomat. Ross becomes involved with another woman after a fight with Rachel.

Ross wakes up with Chloe but an oblivious Rachel wants to resume their relationship.

Ross and Rachel remain apart while their friends feel forced to choose between them.

Phoebe is distraught when her brother wants to marry a woman twice his age. While working as a waitress, Monica gets a tip from an admirer worth a small fortune. A hypnosis tape makes Chandler act like a woman.

Ross is upset when Rachel returns his personal belongings and dates Mark. Monica dates a millionaire.

Joey thinks he's found his true love. Rachel's boss dates Chandler, creating big trouble for Rachel. Monica inherits a dollhouse.

When Pete buys a restaurant, Monica must make a difficult decision. Ross makes a sacrifice for Rachel. Joey buys Chandler an unusual pet.

Ross tries to convince Rachel that her date is psychotic. Joey's play gets terrible reviews.

Ross finds a strange growth on his buttocks. Phoebe can't choose between two guys. Monica's boyfriend surprises her.

Monica's boyfriend cannot stop fighting. Chandler's boss is overly friendly.

The son of a human lighthouse keeper and the queen of the lost city of Atlantis, young Arthur Curry needs his superhuman abilities of the sea to help him stop the diabolical plans of his power-mad half-brother Orm.

Howard's wedding plans are in jeopardy after the guys (and Wil Wheaton) throw him a bachelor party and details of his sexual history are leaked online.

When NASA reschedules Howard's mission and puts his wedding plans in jeopardy, he's forced to face his fears and Bernadette's dad (Casey Sander).

When Howard and Bernadette decide they want to be married before his NASA space launch, the gang rushes to put on a wedding, on the fifth season finale.

On the sixth season premiere, Howard discovers that he can't escape his mother -- even in space! Back on earth, meanwhile, Raj turns his existence as a third wheel into an art form.

When Sheldon learns that Penny is thinking about breaking up with Leonard, he tries to intervene. Meanwhile, Howard is being picked on in space by the other astronauts.

Amy's nervous when Sheldon hires Alex, a female assistant.

Howard returns from space -- without the welcome he wanted.

The gang celebrates Halloween at Stuart's comic book store. Meanwhile, Leonard and Penny discover a new spark in their relationship when he seduces her with science.

Pam's contractions begin but she and Jim are determined to wait it out as long as possible so they can have more time at the hospital. Meanwhile the rest of the office tries to distract Pam from the pain with food and entertainment.

Michael anxiously waits for Pam and Jim's baby to be born. Back at the office, Erin makes Andy jealous when she has lunch with Kevin.

Michael thinks he impressed Jo only to discover someone else in the office caught her eye. Meanwhile, Dwight makes trouble on Jim's first day back from paternity leave. Andy and Erin have an interesting first date.

When the sales staff lets Sabre's new "sales is king" policy get to their heads, Michael hides their new, prized leads.

Michael gets kicked out of the bar when he whips out all the stops to impress a friend of Jim and Pam's. Meanwhile, Andy and Erin do their best to keep their relationships under wraps. Dwight rethinks his pre-natal contract with Angela.

Andy pulls out all the stops to give Erin a memorable Secretary's Day. Michael reluctantly takes Erin out to lunch and lets slip about Andy's relationship with Angela. Meanwhile, Oscar circulates a viral video he created.

Mary plans Pastor Jeff's wedding.

Sheldon catches Paige shoplifting.

George and Georgie go camping with Meemaw's boyfriends.

Sheldon and Georgie bond over a money-making opportunity.

Meemaw meets Dale's ex-wife.

Sheldon visits CalTech for the very first time.

The friends stay at a beach house. Phoebe meets someone who knows details about her family. Rachel expresses her jealousy of Ross' uninhibited girlfriend.

Ross loves dating Rachel again but hates what he did to accomplish the reconciliation. Phoebe gets to know her mother.

Phoebe thinks her adoptive mother's spirit inhabits a stray cat. Joey's attempt to sell his entertainment center proves hazardous.

Monica tries to prove her mother wrong. Chandler gets into an embarrassing situation while dating Rachel's boss.

Joey makes an odd deal with the building superintendent to prevent him from evicting Rachel and Monica. Phoebe wants to date her sexy massage client.

Joey thinks Chandler hates Joey's new girlfriend -- but the truth could be even more upsetting. Ross and Rachel try to make each other jealous.

Ross' beautiful new girlfriend has a disgusting secret. Chandler becomes more familiar with Joey's girlfriend.

Chandler is guilt-ridden after kissing Joey's girlfriend. Ross' musical talents are not as amazing as he and Phoebe think.

On Thanksgiving, Joey wants to punish Chandler for kissing Kathy. Monica gets a surprise when she visits an eye doctor.

The guys try to be spontaneous and wild. After Monica gives a bad restaurant review, she receives a new career opportunity. Rachel's boss offers her a promotion.

Ross struggles to maintain a long-distance relationship. Chandler tries to get a date for Rachel. Monica schemes to establish authority at her new restaurant job.

Phoebe's half-brother makes an astounding announcement and a thought-provoking request. Joey finds himself in a class struggle.

Sheldon's friendship with renowned scientist Stephen Hawking is threatened by a game of "Words with Friends," while Penny secretly enrolls in a class at the local college.

Bernadette pressures Howard to move out of his mother's house, while Sheldon finds himself caught in the middle of a fight between Amy and Wil Wheaton.

Pam and Jim work on their first sales pitch together to Donna, the manager of a local restaurant, but Michael keeps misreading the signals she's putting out. Meanwhile, Dwight encourages Kelly to try out for the minority training program.

Michael suspects Donna is cheating on him and puts P.I. Dwight Schrute on the case. Meanwhile, Andy is frustrated when no one takes his customer's complaint seriously.

Michael is surprisingly cheerful after learning some bad news about Donna. The new parents, Pam and Jim, have trouble staying awake in the office. Meanwhile, Angela takes matters into her own hands when Dwight refuses to honor their contract.

The press finds out that Sabre's printers catch on fire. Jo shows up to the office in hopes of finding out who the whistleblower is. Everyone suspects Andy, who adamantly denies he leaked the information.

Michael refuses to fire the new office assistant after everyone complains about his bad attitude. Andy plays it cool after Erin shows interest in another man. Meanwhile, Pam tries to impress Jim by pulling an office prank of her own.

Corporate assigns Michael to counseling with Toby. Dwight vows revenge on the Steamtown Mall after a shop owner snubs him. Meanwhile, Pam conspires to change her job title.

Andy invites the entire office to his community theater production of Sweeney Todd in hopes that Erin will attend. Michael tries to put his jealousy aside and enjoy the performance, while Jim and Pam struggle with their incompetent babysitter.

Michael, believing he has herpes, contacts all his ex-girlfriends, including Jan and Holly. Andy tries to play on Erin's compassionate side by holding a sex education meeting for the office.

When a competing sales associate steals a Dunder Mifflin client, Michael, Jim and Dwight decide to set up a sting to find out his sales secrets. Andy decides to start a band after finding out a friend from college has a successful music career.

When Darryl takes an idea to corporate over his head, Michael freaks out. Everyone in the office is in a competitive mood as the Halloween costume contest gets underway. Meanwhile, Pam tries to get the truth out of Danny about their dating history.

Pam and Jim's baby, Cece, gets christened, and Michael invites the entire office to celebrate.

Sheldon accuses Dr. Sturgis of plagiarism.

George accidentally sends the school librarian to the hospital.

Sheldon sets out to find the perfect neighbors.

Sheldon has a scientific breakthrough at the dentist's office.

Sheldon discovers Mary's been keeping a secret about him.

After graduating high school, Sheldon has a breakdown when he realizes he may not be ready for college. Also, Dale tries to make amends with Meemaw.

Phoebe finds out whether she is pregnant or not. A simple challenge escalates into a full-blown contest between the guys and the women.

Rachel schemes to get a handsome client to ask her on a date. Chandler's jealousy causes problems with his girlfriend.

Charlton Heston finds Joey in a compromising position during a movie shoot. Rachel regrets asking Ross for a favor.

Chandler's annoying former girlfriend reappears. Ross plays rugby to impress Emily with painful results.

Trying to become better acquainted with her sexy client, Rachel inadvertently thwarts Ross' plans for a romantic evening with his girlfriend.

Monica helps Ross tell his girlfriend that he loves her. Phoebe gets some surprising news about her pregnancy.

Ross and his ex-wife become jealous when their lovers go to England together. Rachel's plans to seduce her boyfriend go awry.

Drastic changes occur in Ross' relationship with Emily. Monica and Rachel will do anything to get their old apartment back from the guys.

Rachel reacts drastically to Ross' engagement. Chandler becomes exasperated by Joey's snoring.

Rachel and the engaged Ross reminisce separately about when they dated each other. The friends get invitations to Ross' wedding but not all of them are going.

Joey loses Ross' treasured wedding ring. Phoebe has extreme mood variations from her pregnancy.

Rachel stays home while the others go to England for Ross' wedding.

Howard and Raj try to solve a mystery about Sheldon.

Sheldon and Howard battle over an assigned parking spot.

Howard bonds with his father-n-law on a fishing trip.

Sheldon unwillingly revisits some Christmas memories during a lively game of Dungeons and Dragons, while Raj joins the girls for ladies night out.

Sheldon is accused of sexual harassment at the University and winds up dragging Leonard, Raj and Howard into the fray.

Leonard's car is stolen when the guys take a road trip to a comic book convention in Bakersfield, dressed as Star Trek characters.

Outraged that he's being forced to work with his university nemesis, Barry Kripke (John Ross Bowie), Sheldon faces a crisis of conscience.

When Sheldon and Leonard fight, it affects Penny and Amy's living arrangements. Meanwhile, Raj takes care of Mrs. Wolowitz while Howard is away.

Look out! The Jokers hatch horrible revenge schemes on their office bullies, then put one poor contractor through the ringer as they attempt home improvement projects. Later, tonight's loser will be gifted the world's finest douchemobile.

The Jokers are unsympathetic store managers, forced to throw out a disruptive customer before dealing with the wrath and disdain of fellow patrons. Then, the guys must get a bystander to take their side during a heated argument with their fake spouses.

Erin and Gabe invite the office over for a "Glee" viewing party. Michael deals poorly with hearing people call Gabe his boss. Meanwhile, Andy grows more and more jealous of Gabe's relationship with Erin.

More than money is at stake as Michael helps charm people into investing in Ryan's internet company. Dwight capitalizes on both the Thanksgiving holiday and his childhood memories by creating a hay festival in the parking lot.

After reading an article about China growing as a global power, Michael decides China must be stopped before they take over the US. Everyone in the office complains about Dwight's building standards and Pam threatens to move Dunder Mifflin.

Michael could not be happier when Toby has to take a leave of absence and corporate sends Holly Flax to cover for him. Pam is forced to do a second Christmas party after Michael wants the party to be on the day Holly returns to Scranton.

Michael could not be happier when Toby has to take a leave of absence and corporate sends Holly Flax to cover for him. Pam is forced to do a second Christmas party after Michael wants the party to be on the day Holly returns to Scranton.

Michael prepares himself for the good or bad news about Holly and her boyfriend. In an effort to be an "awesome" office manager, Pam decides to put up a resolution board for everyone to post their New Year's resolutions.

With Andy's sales at his lowest ever, he gets desperate and holds a small business seminar with the help of some special guests. Michael and Holly turn the event into an improv challenge.

When Jim gets an emergency phone call from Helene, he is forced to leave Michael in the bathroom of a gas station. Meanwhile, Holly, Erin and Dwight set out on a journey to find Michael.

As Holly's relationship with Michael continues to blossom, it's Valentine's Day in the office, and the public displays of affection between Michael and Holly are making everyone uncomfortable.

After eleven years of writing, shooting, re-shooting and editing, Michael is finally ready to present his long-awaited action movie, "Threat Level Midnight," to his coworkers and love interest Holly. But is he ready for their reactions?

While Sheldon volunteers at a local train museum, Missy embarks on a new stage of womanhood, and Georgie discovers his mother's guilty pleasure.

With college in sight, Sheldon is determined to ride his bike without training wheels and has Missy teach him. Meanwhile, Mary and George argue over parenting styles.

Sheldon finds himself in a fierce competition with Paige after their mothers force them to attend Vacation Bible School. Meanwhile, Georgie makes a questionable purchase.

While Mary and George take a trip, Georgie freaks out when his girlfriend thinks she's pregnant. Dale and Meemaw work out their relationship issues with Dungeons and Dragons.

While college orientation does not go as Sheldon planned, Mary is mistaken for a university student and invited to a party.

Sheldon's first day of college is derailed by his new philosophy teacher. Also, Mary and Brenda live vicariously through Missy's first day of middle school.

Rachel frantically tries to get to London before Ross marries Emily. Ross' father clashes with Emily's.

Will Emily forgive Ross before their honeymoon? Monica and Chandler agree to end their new relationship.

Ross' new wife won't speak to him. Rachel appoints Monica her advisor in romance. Phoebe feels neglected.

While Phoebe delivers triplets, Joey experiences his own pain. Monica plans a date with a male nurse to spite Chandler.

Joey challenges Phoebe to perform a completely selfless act. Monica gets upset when Chandler gloats about sex. Ross might finally reconcile with Emily but he must make a tough decision.

Ross tells Rachel that he cannot be around her once Emily comes to New York. Chandler and Monica try to have a romantic weekend.

Will Ross obey Emily and move away from his friends? Monica and Rachel meet a monster.

Joey and Chandler regret letting Ross move in with them. Rachel schemes to get her new neighbor to ask her on a date.

The friends find out about Monica's worst Thanksgiving ever.

Joey becomes exasperated from hiding Chandler and Monica's secret. Ross gets in trouble when he expresses his rage.

A bored Ross creates havoc in Joey and Chandler's lives. Rachel is disturbed by her date's inappropriate relationship with his sister.

On New Year's Eve, the friends make resolutions for the coming year but keeping them proves difficult.

Sheldon struggles to find a Valentine's gift for Amy.

Former co-worker Todd Packer returns to the office looking for work, but will his former office mates push for him to be re-hired?

The office holds its first garage sale in the warehouse, while Michael finally pops the question to Holly.

The new manager, Deangelo Vickers, has everyone hoping to make good first impressions: Andy finds himself awkwardly typecast, while Jim and Pam worry that they've come on too strong. Only Dwight is apathetic about the new leader.

Michael trains Deangelo to take over the job of hosting the Dundie Awards. Erin struggles with her dislike of her boyfriend, Gabe.

Michael, about to leave for Colorado, wants a day without drama to say his goodbyes to each co-worker. Deangelo and Andy scramble to keep Michael's biggest clients.

Michael, about to leave for Colorado, wants a day without drama to say his goodbyes to each co-worker. Deangelo and Andy scramble to keep Michael's biggest clients.

Deangelo's true management style is finally revealed.

Dwight takes over as acting manager and applies draconian tactics to the office. Meanwhile, Gabe tries to win Erin back.

Jim heads a search committee that interviews candidates, including Andy and Darryl. Dwight tries to get back in the race.

Jim heads a search committee that interviews candidates, including Andy and Darryl. Dwight tries to get back in the race.

The Dunder Mifflin staff accidentally discovers a list of their names in the notebook of the company's mysterious new CEO, Robert California, triggering a frenzy of speculation.

After a rousing motivational speech, Robert California challenges the office to double their sales. After the new manager promises the unthinkable, everyone in the office suddenly gets motivated to sell. Meanwhile, Pam finds an unlikely pregnancy friend.

After the warehouse guys win the lotto and quit, everyone in the office dreams of what it would be like to win big. Andy and Darryl search for new warehouse employees, while Jim, Erin, Dwight, and Kevin get a taste of warehouse life.

Meemaw takes matters into her own hands when Sheldon's philosophy teacher, Professor Ericson, sends him into a tailspin.

Sheldon and his dad dine with President Hagemeyer and a university benefactor. Also, Dale and his ex-wife invite Meemaw to their son's wedding.

Sheldon campaigns to become Dr. Linkletter's lab assistant. Meanwhile, Georgie enlists the help of Mr. Lundy, the drama teacher, for a surprising business venture.

Dr. Linkletter pushes Sheldon to make friends with his fellow students, and Georgie gets a pager.

Sheldon, Dr. Linkletter and Meemaw team up on a science experiment. Also, Mary is jealous that Pastor Jeff and Brenda are spending so much time together.

Sheldon refuses to ride in a car after getting into an accident with Meemaw. Meanwhile, Meemaw is forced to take the church shuttle while her car is in the shop.

Chandler's behavior toward his boss annoys Monica. Ross' latest romance astounds everyone.

Phoebe meets another long-lost relative. Joey wears a shoulder bag.

Chandler and Monica's relationship becomes less of a secret. Ross must prove to his boss that he's sane in order to return to work.

Chandler thinks Monica wants more from their relationship. Ross fails to impress his new neighbors.

Joey wonders if he is in love with Monica. Phoebe impersonates a police officer.

Rachel interviews for a great job but she may get it for the wrong reason. Monica competes to have a better relationship than Phoebe's.

Rachel submits to peer pressure at work. Joey and Ross' son audition for the same commercial but only one can get the part.

Ross' flirting technique fails to impress a cute pizza-delivery woman. A surprise awaits Joey when he tells everyone about his big television appearance.

The guys enjoy riding along with a police officer until a gunshot is heard. Rachel overhears a telephone message for Ross from his second ex-wife.

Phoebe's boyfriend wants her to move in with him. Ross and Joey involve Chandler and Monica in an obsessive game.

Joey's first major film role leads to an unexpected experience in Las Vegas. Phoebe can't remember why she hates Ross.

The gang travels to Las Vegas, Nevada, where more than one surprise awaits. After Ross misinterprets Rachel's actions, a war of public humiliation results.

Raj vows never to leave his apartment after a horrible date.

Leonard, Sheldon and Howard try to advance the cause of women in science by speaking with junior high girls about their future careers, while Raj plans his date with Lucy.

To open or not to open? When Howard finds a letter from his father, he's forced to confront his past. And Leonard and Penny throw a grown-up cocktail party at the apartment.

Leonard, Sheldon and Raj fight for tenure at the University.

After one of his favorite TV shows gets canceled too soon, Sheldon feels lost, so Amy tries to help him get over his compulsive need for closure by retraining his brain.

Leonard and Sheldon hire Professor Proton (Bob Newhart), the host of their favorite childhood TV show to perform. Raj leaves his dog with Howard and Bernadette.

When the girls' trip to Vegas falls through, the guys invite them to a Dungeons & Dragons date night that causes Sheldon and Amy's relationship to take an unexpected turn.