Moira attempts to beautify the town. David misuses the company credit card, and Alexis and Mutt question their relationship after a personal grooming misstep.

Dan helps Roz with an investigation that goes awry as they find themselves pleading their case in front of Abby.

When Trey spends his first night at The Nest, he discovers evidence that Jim and Julia once had a more adventurous relationship than he imagined, and he must erase it.

While at the coffee shop Charlie is recognised by a woman he dated but Charlie can't remember her name. Jake falls for the same woman's daughter so Charlie double-dates with Jake and fixes Alan up with a hooker.

After seeing Charlie with a lot of females in the space of one day, Alan feels Charlie is unable to control his womanising ways. Charlie goes to see his shrink who makes him realise he's missing the one that got away.

Bonnie goes to extremes to keep a major secret from Christy.

Christy & Bonnie's acidic relationship makes them unwelcome.

Mike & Molly get caught up in Victoria's birthday drama.

Mike & Molly are asked about marriage.

Mike and Molly adjust to life as an engaged couple.

Leonard and Amy take a road trip.

Howard takes a class that Sheldon's teaching.

Howard is invited by NASA to throw the first pitch at a game.

After bleaching his teeth for a date, Ross discovers they now glow in the dark. Chandler convinces Joey that Janine is trying to take over his apartment and Phoebe makes out with the copy guy at Rachel's office.

Monica's parents come for Thanksgiving, which is a problem because Monica never told them Chandler was living with her. Joey and Ross can't wait for dinner to end so they can go to Janine's "Thanksgiving with 'models".

Janine gets an invitation to dance on "Dick Clark's New Year's Rockin' Eve" and invites Joey, Monica and Ross along. Monica and Ross are ecstatic about this as it gives them a chance to finally use their 'routine'.

Rachel orders an apothecary table from Pottery Barn, which is a problem because Phoebe hates the mass-producing company. After a double date, Janine tells Joey she thinks Chandler and Monica are boring.

Bonnie goes to extremes to keep a major secret from Christy.

Everyone but Christy supports Bonnie after her relapse.

Christy & Bonnie's acidic relationship makes them unwelcome.

Mike & Molly get caught up in Victoria's birthday drama.

Mike & Molly are asked about marriage.

Mike and Molly adjust to life as an engaged couple.

Leonard and Amy take a road trip.

Howard takes a class that Sheldon's teaching.

Howard is invited by NASA to throw the first pitch at a game.

After bleaching his teeth for a date, Ross discovers they now glow in the dark. Chandler convinces Joey that Janine is trying to take over his apartment and Phoebe makes out with the copy guy at Rachel's office.

Monica's parents come for Thanksgiving, which is a problem because Monica never told them Chandler was living with her. Joey and Ross can't wait for dinner to end so they can go to Janine's "Thanksgiving with 'models".

Janine gets an invitation to dance on "Dick Clark's New Year's Rockin' Eve" and invites Joey, Monica and Ross along. Monica and Ross are ecstatic about this as it gives them a chance to finally use their 'routine'.

Rachel orders an apothecary table from Pottery Barn, which is a problem because Phoebe hates the mass-producing company. After a double date, Janine tells Joey she thinks Chandler and Monica are boring.

Roscoe asks to live with his dad.

Bonnie's estranged mother returns.

Christy & Bonnie try to help a teenage addict.

Mike's mom gets a big surprise on her boyfriend's birthday.

Mike moves in with Molly and her family.

Mike buys Vince's 57 Chevy instead of saving for the wedding

Penny wonders why Raj's girlfriend doesn't like her.

The guys unsuccessfully try to invent "the next big thing".

Sheldon and Raj venture underground in the name of science.

Chandler and Ross fight over ownership of a joke published in Playboy. A wayward remark of Phoebe's leads to trouble between the girls and a broke Joey starts working at Central Perk.

Joey gets in trouble for giving female customers free food at Central Perk. A sick Monica desperately tries to convince Chandler she's not sick and Rachel's sister Jill comes to town after her father cuts her off.

Chandler admits that he hasn't cried since he was a child. Phoebe discovers that Ursula is starring in porno movies using her name and Rachel desperately tries to stop Ross and Jill from starting a relationship.

Barry and Mindy's impending divorce prompts the gang to fantasise about what their lives might be like if they'd all taken different courses.

Georgie’s attempt to break up Missy and her new boyfriend backfires.

Esme helps Deacon and Allison make their escape after Kethan and Alfie join forces to catch them. Will they get away? Will their relationship survive? What is Allison about to reveal that changes everything?

Evelyn and Teddy's wedding is under-way and Alan helps the two make plans. Courtney tells Charlie they can't see each other anymore but Charlie can't accept it and takes desperate measures to change her mind.

Evelyn's husband Teddy is found dead in this spoof episode of CSI. The CSIs investigate the death, during which it is revealed Teddy and Courtney are frauds who were trying to steal money from both Charlie and Evelyn.

Dan helps Roz with an investigation that goes awry as they find themselves pleading their case in front of Abby.

When Trey spends his first night at The Nest, he discovers evidence that Jim and Julia once had a more adventurous relationship than he imagined, and he must erase it.

The Thorn staff hears rumors that the paper has been sold, Annie puts a relationship in jeopardy, and Fran and Emily have a serious fight.

Charlie must make a difficult decision about his future as to which woman he wants to spend his life with, Chelsea or Mia. Meanwhile, Charlie also grows wary that Melissa has slowly moved into the house.

Girls rule the roost after Charlie consents to Chelsea's desire for Alan's girlfriend, Melissa, to move in with them.

Alan cares for Judith's child and his ex-mother-in-law. Elsewhere, Charlie backing over a cat provides Jake with a chance to blackmail him.