Frankie cracks down on Axl to study more.

Frankie and Mike consider leaving their house.

Frankie takes Brick's social skills group trick or treating.

When Raj is cut off from his father's fortune, he appoints Sheldon in charge of his finances to help him get out of debt. Meanwhile, Penny considers joining Leonard at Comic-Con.

When Raj moves out of his apartment, Leonard and Penny offer him Sheldon's old room. Christine Baranski returns as Leonard's mother, Beverly.

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

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.

When Charlie's ex-girlfriend Courtney is released from prison he treats her to the good life despite her having been in prison for conning him. However, Alan is concerned that she's using him all over again.

Alan goes to great lengths to be able to get Lyndsey a nice birthday present.

Charlie pays a visit to Dr. Freeman to help deal with breaking up with Courtney.

Alan lets his paranoid suspicions get the better of him when Charlie and Lyndsey start being more friendly to each other.

Caroline and Max ask two Amish boys to build a barn for Chestnut; Andy makes a discovery about Caroline.

Frankie cracks down on Axl to study more.

Frankie and Mike consider leaving their house.

Frankie takes Brick's social skills group trick or treating.

When Raj is cut off from his father's fortune, he appoints Sheldon in charge of his finances to help him get out of debt. Meanwhile, Penny considers joining Leonard at Comic-Con.

When Raj moves out of his apartment, Leonard and Penny offer him Sheldon's old room. Christine Baranski returns as Leonard's mother, Beverly.

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

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.

When Charlie's ex-girlfriend Courtney is released from prison he treats her to the good life despite her having been in prison for conning him. However, Alan is concerned that she's using him all over again.

Alan goes to great lengths to be able to get Lyndsey a nice birthday present.

Charlie pays a visit to Dr. Freeman to help deal with breaking up with Courtney.

Alan lets his paranoid suspicions get the better of him when Charlie and Lyndsey start being more friendly to each other.

Caroline and Max ask two Amish boys to build a barn for Chestnut; Andy makes a discovery about Caroline.

Frankie cracks down on Axl to study more.

Frankie and Mike consider leaving their house.

Frankie takes Brick's social skills group trick or treating.

When Raj is cut off from his father's fortune, he appoints Sheldon in charge of his finances to help him get out of debt. Meanwhile, Penny considers joining Leonard at Comic-Con.

Axl might have a football scholarship...if he behaves!

Frankie is thrilled when she learns that the Orson Community Theater is putting on a production of The Wizard of Oz.

Frankie squabbles with her sister at Thanksgiving.

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.

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

Carol and Ross decide to have a threesome to spice up their marriage. Rachel goes to Joey's and kisses him. Chandler and Monica have sex and end up together anyway. Susan meets Carol and Rachel catches Barry cheating.

Joey needs money for new headshots and tries to enter a medical study. The problem being the study is for twins. Rachel and Phoebe are taking a self-defence class but Ross tries to give them a lesson in Unagi instead.

Ross gets his student evaluations and one student writes he's hot. Even though it could cost him his job he considers dating her. A fire starts in Phoebe and Rachel's apartment forcing them to move in with Monica and Joey.

Phoebe, Monica and Chandler compete to get Rachel a date for a charity ball. Joey's fridge is broken and he tries to cajole his friends into helping him buy a new one.

Legendary Vegas comedian Deborah Vance is in danger of losing her residency. Meanwhile in L.A., young, entitled writer Ava is desperate for a job. Their mutual manager Jimmy sets them up on a meeting, much to their chagrin.

With her prime performance slots hanging in the balance, Deborah reluctantly begins working with Ava, testing their initial compatibility with a highly unconventional road trip. As they encounter unexpected bumps, Ava learns a messy lesson in resilience.

Obsessed and believing her to be married, Charlie starts stalking Rose. Meanwhile, Alan grows concerned when Jake and Eldridge start videotaping stupid and extremely dangerous stunts.

Rose keeps 'cheating' with Charlie. Alan's plea to family for money, to advertise his chiropractic office, quickly devolves into a Ponzi scheme.

Max and Caroline figure out a surprising fundraising solution when a potential storefront for Max's Homemade Cupcake becomes available for the girls to rent as the two go to great lengths to raise enough money to see their dream come true.

Axl might have a football scholarship...if he behaves!

Frankie is thrilled when she learns that the Orson Community Theater is putting on a production of The Wizard of Oz.