Johnny tries to avoid the spread of lice in the motel while Moira tries to get out of having a flower garden named after her.

A tech entrepreneur in court has Dan and the gang seeing a chance to get in on the ground floor of the next billion-dollar idea.

Neil’s crush on Abby is making things uncomfortable for everyone, but Abby sees a way out when she meets an unrequited love from his past who just happens to be newly available.

Chelsea is put off by Charlie's jealousy towards her relationship with Brad and he vows to become the better man he says she deserves.

Crushed over his break-up with Chelsea, Charlie goes missing and comes back to Malibu married.

Bonnie locks horns with the new building owner.

Christy's sponsor challenges her to be nice to Bonnie.

Bonnie lands in jail during her spa trip with Christy.

Mike & Carl arrest Molly's idol, J.C. Small for a DUI.

Molly catches Carl coming out of Victoria's room at night.

Peggy's bathtub falls through her ceiling!

Leonard, Penny and Raj adjust to their new living arrangement, while Sheldon takes an interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Howard as well as Amy on the same day. Meanwhile, Bernadette nears the end of her maternity leave.

Howard and Bernadette have a hard time leaving Halley in daycare when Bernadette returns to work. Meanwhile, Bert introduces the gang to his new girlfriend, Rebecca.

The friends support Ross as he prepares for a keynote paleontological address in Barbados. Phoebe has her hands full with two suitors, David and Mike.

Rachel finally tells Joey about her crush on him. Monica and Mike compete at a game of ping pong.

Ross and Charlie decide that they can't go forward with a relationship before Ross talks to Joey, while Joey and Rachel decide that they can't go forward with a relationship before talking to Ross.

Ross tries to convince everyone that he's okay with Joey and Rachel being together while Phoebe gets an unusual offer from her half-brother. Chandler put his foot in it when he tells an unsuspecting child he's adopted.

Bonnie locks horns with the new building owner.

Christy's sponsor challenges her to be nice to Bonnie.

Bonnie lands in jail during her spa trip with Christy.

Mike & Carl arrest Molly's idol, J.C. Small for a DUI.

Molly catches Carl coming out of Victoria's room at night.

Peggy's bathtub falls through her ceiling!

Leonard, Penny and Raj adjust to their new living arrangement, while Sheldon takes an interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Howard as well as Amy on the same day. Meanwhile, Bernadette nears the end of her maternity leave.

Howard and Bernadette have a hard time leaving Halley in daycare when Bernadette returns to work. Meanwhile, Bert introduces the gang to his new girlfriend, Rebecca.

The friends support Ross as he prepares for a keynote paleontological address in Barbados. Phoebe has her hands full with two suitors, David and Mike.

Rachel finally tells Joey about her crush on him. Monica and Mike compete at a game of ping pong.

Ross and Charlie decide that they can't go forward with a relationship before Ross talks to Joey, while Joey and Rachel decide that they can't go forward with a relationship before talking to Ross.

Ross tries to convince everyone that he's okay with Joey and Rachel being together while Phoebe gets an unusual offer from her half-brother. Chandler put his foot in it when he tells an unsuspecting child he's adopted.

Christy grapples with new addiction issues.

Christy has second thoughts about law school.

Christy decides she doesn't need Gamblers Anonymous anymore.

Molly gets accepted into an elite eight-week writers' workshop in Iowa, but faces a big decision when Mike asks her not to go.

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.

Leonard isn't thrilled when Penny considers taking a new job offered by her ex-boyfriend, Zack.

After Leonard, Sheldon and Howard celebrate the completion of their top secret Air Force project, they're met with an unpleasant surprise.

On the tenth season finale, the gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki resurfaces while Amy is away at Princeton.

Ross gets a spray-on tan that does not go well. Joey and Rachel's first date goes well until they return home and find everything awkward. Monica and Phoebe try to avoid Amanda, their annoying friend from London.

It's baby Emma's first birthday but a mishap at the bakery means the cake is shaped like an erotic object. Rachel won't let the party start until Emma wakes from her nap but everybody has other places to be.

Rachel's sister Amy babysits Emma to prove she's responsible but with disastrous results. Monica and Chandler solicit Joey to write a letter to the adoption agency on their behalf and Phoebe and Mike get engaged.

Ross applies for a palaeontology grant and finds out Charlie's ex-boyfriend reviews the applications, who in turn sabotages Ross's application. Chandler upsets Joey's when he's caught lying over Joey's audition tape.

Wendy closes in on Séamus and his family whilst navigating a casting crisis at work.

Charlie and Chelsea's break-up doesn't stop them from having a post-breakup one-night stand.

Charlie runs into Chelsea's old friend Gail. Alan learns he's able to please a new female chiropractic patient just by working on her lower back.

Molly gets accepted into an elite eight-week writers' workshop in Iowa, but faces a big decision when Mike asks her not to go.

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.

Ross gets a spray-on tan that does not go well. Joey and Rachel's first date goes well until they return home and find everything awkward. Monica and Phoebe try to avoid Amanda, their annoying friend from London.

It's baby Emma's first birthday but a mishap at the bakery means the cake is shaped like an erotic object. Rachel won't let the party start until Emma wakes from her nap but everybody has other places to be.