Johnny tries to get a potentially offensive town sign taken down, while David is faced with the frightening task of finding a job.

Bruce and Alex give conflicting medical advice to a young athlete. Joyce competes with Tiger Woods in her alumni magazine. Matt and Serena (almost) drop an unconscious patient.

Bed-bound and recovering from his antics creeping around the house, Gabe is forced to reflect on his relationship with Liz and her final days.

Charlie and Mia start making their wedding arrangements, however, things begin to fall apart when their two families meet. Eventually they decide on a small ceremony in Las Vegas.

Charlie returns to his bachelor lifestyle after Alan moves out of the house whilst Alan suffers a breakdown after his divorce from Kandi.

Jill's attempt at a good deed becomes a moral dilemma.

Bonnie reconnects with an old flame.

Bonnie & Adam offer relationship advice to Jill & Andy.

Molly returns home after eight weeks at a writers' workshop with great news: she's getting published and scored a big book advance.

Molly has writer's block.

Mike struggles to be home for Christmas.

When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab.

Penny is horrified when Amy gives her a gift: a huge, quite horrible painting of the two of them. With no good way to avoid displaying it, she only hangs it up when Amy is over.

Sheldon becomes agitated when his regular barber is out sick. Astronaut training causes Howard to reconsider wanting to go into space.

Phoebe's half-brother visits, but they have trouble bonding. Joey attempts to build an entertainment centre whilst Ross is challenged to name the five celebrities he'd like to sleep with the most.

When Janice asks the gang if any of them have ever slept together, the friends flash back to a time three years before, where some dark secrets are revealed.

Joey sees Janice and her soon-to-be-ex-husband, "The Mattress King", kissing. Rachel attempts to have her father and Ross bond but things don't go as planned and Joey gets a job teaching a soap opera acting class.

Joey tells Chandler he saw Janice kissing her ex-husband. Monica accidentally bumps Ben's head against a post and Phoebe is convinced she's cursed because every time she goes to the dentist someone around her dies.

Jill's attempt at a good deed becomes a moral dilemma.

Bonnie reconnects with an old flame.

Bonnie & Adam offer relationship advice to Jill & Andy.

Molly returns home after eight weeks at a writers' workshop with great news: she's getting published and scored a big book advance.

Molly has writer's block.

Mike struggles to be home for Christmas.

When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab.

Penny is horrified when Amy gives her a gift: a huge, quite horrible painting of the two of them. With no good way to avoid displaying it, she only hangs it up when Amy is over.

Sheldon becomes agitated when his regular barber is out sick. Astronaut training causes Howard to reconsider wanting to go into space.

Phoebe's half-brother visits, but they have trouble bonding. Joey attempts to build an entertainment centre whilst Ross is challenged to name the five celebrities he'd like to sleep with the most.

When Janice asks the gang if any of them have ever slept together, the friends flash back to a time three years before, where some dark secrets are revealed.

Joey sees Janice and her soon-to-be-ex-husband, "The Mattress King", kissing. Rachel attempts to have her father and Ross bond but things don't go as planned and Joey gets a job teaching a soap opera acting class.

Joey tells Chandler he saw Janice kissing her ex-husband. Monica accidentally bumps Ben's head against a post and Phoebe is convinced she's cursed because every time she goes to the dentist someone around her dies.

Adam decides to go skiing for the first time since his accident.

Bonnie and the ladies indulge Jill.

Jill has an unexpected reaction when her dentist retires.

Carl invites Victoria on the guys-only fishing trip.

Molly annoys everyone with her numerous book drafts.

Mike feels guilty after flirting with a rookie cop.

Sheldon must choose between joining Amy at her aunt's birthday party or playing videogames all weekend with the guys.

Penny buys Leonard and Sheldon “Star Trek” collectibles as a thank-you, leading Sheldon to be haunted by Mr. Spock. Meanwhile, Raj decides he has met the 'Future Mrs. Koothrappali' after his parents set him up on a date.

When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.

Emotions become the feast of the day when the gang plays a game of touch football. Joey & Chandler argue over who gets to date a beautiful Dutch woman and Ross & Monica argue over winning in a case of sibling rivalry.

Rachel makes a rash decision after Gunther tells her she needs retraining. Phoebe tries to help Joey when he gets a job selling Christmas trees and Ross accidentally breaks a girl's leg and tries to make it up to her.

Ross is suspicious about Rachel's possible job offer from a good-looking stranger. A drunken Chandler fools around with one of Joey's sisters but can't remember which one.

Wendy handles a wee legal crisis stemming from Jack E. McCarthy as a couple of Proctor family secrets come to light in the dark.

Charlie finally tells Alan the truth about why he did not marry Mia and they both have to deal with a noisy neighbour.

Charlie tries to surf to impress Dottie, a beautiful woman he just met, but after he nearly drowns he's convinced he saw his late father.

Johnny and Moira, feeling like they have failed as parents, try to get to know their grown children. Alexis spies on Mutt and thinks he's having an affair with the Mayor's wife.