Bonnie gets a new outlook on sobriety.

Christy, a waitress at a posh Napa Valley establishment who is four months clean and doing her best to be a good mom and overcome a history of questionable choices.

Christy and Bonnie deal with a family crisis together.

Frankie sets up office hours to deal with her kids demands.

Sue tries to win a car while Mike & Rusty go on a road trip.

The Hecks embark on a road trip to Disney World.

Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.

A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.

Joey doesn't tell the gang about his plans to throw a party on the roof of the building. Ross meets a new colleague and is instantly attracted to her.

Chandler and Monica risk embarrassment when they secretly go to a fertility clinic. Ross hides his feelings for Charlie to help Joey woo her while Rachel sneaks into a spa for a massage, hoping Phoebe won't find out.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby. Phoebe is incredibly nervous about going to a party that Mike will be at, until she bumps into David.

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.

Bonnie gets a new outlook on sobriety.

Christy, a waitress at a posh Napa Valley establishment who is four months clean and doing her best to be a good mom and overcome a history of questionable choices.

Christy and Bonnie deal with a family crisis together.

Frankie sets up office hours to deal with her kids demands.

Sue tries to win a car while Mike & Rusty go on a road trip.

The Hecks embark on a road trip to Disney World.

Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.

A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.

Joey doesn't tell the gang about his plans to throw a party on the roof of the building. Ross meets a new colleague and is instantly attracted to her.

Chandler and Monica risk embarrassment when they secretly go to a fertility clinic. Ross hides his feelings for Charlie to help Joey woo her while Rachel sneaks into a spa for a massage, hoping Phoebe won't find out.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby. Phoebe is incredibly nervous about going to a party that Mike will be at, until she bumps into David.

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.

Christy goes on her first date since she stopped drinking.

Christy's patience is tested by everyone she knows.

Christy makes a new friend with big problems.

The Hecks fight misfortune in Disney World.

Sue & Brad create a "meaningful" senior play.

Leonard and Sheldon compete for the attention of a famous female physicist.

Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.

While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

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.

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.

The Hecks fight misfortune in Disney World.

Sue finally gets her braces off.