Pete finds himself obsessing over a photograph of himself online that an apparent internet troll has been posting. Pete ends up on a dark path as he tries to hunt down the anonymous troll, leading his mother Amy to try to protect him from himself.

Vince is doing his best to move on from his heartbreak, even trying therapy like everyone keeps telling him too; and spending quality time with his son Malik and Talia.

Max joins Caroline on her visit to a white collar prison to see her father, Martin Channing, and he encourages them to purchase a particular keepsake at the Channing estate auction.

Max and Caroline attempt to keep faith that Martha Stewart, who tasted and liked one of their cupcakes in last season's finale, will call and help support their business. Meanwhile, Caroline loses a lucky keepsake.

An unexpected death rocks the Plunkett family.

Bonnie acts out after the death of a loved one.

Christy takes Bonnie for help after Alvin's death.

Brick finds a bad-luck four-leaf clover.

Frankie uses Brick to snitch on Sue and Axl.

Mike's brother is getting married.

Beverly Hofstadter writes a psychology book about Leonard which Penny buys and reads. Sheldon wants to ruin something for Amy after she ruins an Indiana Jones movie for him and Raj and Stuart try online dating.

Amy starts working at Caltech which causes friction with Sheldon. Howard agrees with Sheldon who mentions this to Bernadette causing a big fight for the Wolowitzes.

Sheldon's latest scientific breakthrough leaves him feeling like a fraud and a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.

Ross reveals his sexual fantasy to Rachel which involves a certain Star Wars character. Monica suffers from insomnia after her breakup with Richard and Chandler, back together with Janice, wants Joey to bond with her.

Ross is in a hurry to get everyone dressed for an important banquet at the museum but everyone keeps delaying. Monica freaks when she hears an answer phone message from Richard and Joey & Chandler fight over a chair.

Phoebe dates a man who thinks he's stalking her twin sister. Ross and Rachel give Chandler "boyfriend" lessons. Monica uses her free time to make jam and considers artificial insemination through a sperm bank.

Phoebe acts as Joey's agent and has some success in getting him auditions. Ross is upset to see Ben with a Barbie doll and Chandler is advancing in his relationship with Janice but realises he has commitment fears.

An unexpected death rocks the Plunkett family.

Bonnie acts out after the death of a loved one.

Christy takes Bonnie for help after Alvin's death.

Brick finds a bad-luck four-leaf clover.

Frankie uses Brick to snitch on Sue and Axl.

Mike's brother is getting married.

Beverly Hofstadter writes a psychology book about Leonard which Penny buys and reads. Sheldon wants to ruin something for Amy after she ruins an Indiana Jones movie for him and Raj and Stuart try online dating.

Amy starts working at Caltech which causes friction with Sheldon. Howard agrees with Sheldon who mentions this to Bernadette causing a big fight for the Wolowitzes.

Sheldon's latest scientific breakthrough leaves him feeling like a fraud and a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.

Ross reveals his sexual fantasy to Rachel which involves a certain Star Wars character. Monica suffers from insomnia after her breakup with Richard and Chandler, back together with Janice, wants Joey to bond with her.

Ross is in a hurry to get everyone dressed for an important banquet at the museum but everyone keeps delaying. Monica freaks when she hears an answer phone message from Richard and Joey & Chandler fight over a chair.

Phoebe dates a man who thinks he's stalking her twin sister. Ross and Rachel give Chandler "boyfriend" lessons. Monica uses her free time to make jam and considers artificial insemination through a sperm bank.

Phoebe acts as Joey's agent and has some success in getting him auditions. Ross is upset to see Ben with a Barbie doll and Chandler is advancing in his relationship with Janice but realises he has commitment fears.

Christy gets promoted to restaurant manager.

Christy discovers one of her intimacy issues.

Christy & Bonnie are shocked by how prison changed Regina.

How the Hecks spent their summer.

How the Hecks spent their summer.

Frankie goes back to school after she's fired.

When Professor Proton asks Leonard for help with an experiment, Sheldon retaliates by befriending Proton's rival, Bill Nye.

When a mistake comes to light, Sheldon makes Leonard walk a mile in his shoes; Penny decides to confront Raj's ex.

Sheldon protests when the gang drags him to Mrs. Wolowitz’s house for Thanksgiving. Meanwhile, Penny and Leonard must deal with a mistake from her past.

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.

Dan achieves a major financial milestone, making him reconsider his belief in the Conners curse; Mark finds out some news that causes him to reevaluate his future.

Abby tries to get the court featured on a popular podcast, but the host only has eyes for Dan, who soon learns that being the center of attention can have its downsides.

When Abby's fiancé, Rand, learns she's struggling to connect with Olivia, he encourages Abby to embrace a side of herself she rarely shows.

Max and Caroline show their true colours when the diner gets robbed. Meanwhile, everyone sees a surprising new side of Han.

Max and Caroline try to take their cupcake business to the next level by auditioning for the reality cooking show Cupcake Wars.

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.

How the Hecks spent their summer.

How the Hecks spent their summer.

Frankie goes back to school after she's fired.

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.

Max and Caroline show their true colours when the diner gets robbed. Meanwhile, everyone sees a surprising new side of Han.

Max and Caroline try to take their cupcake business to the next level by auditioning for the reality cooking show Cupcake Wars.