Six young men and women live in the same apartment complex and face life and love together in Manhattan, New York City. As they're constantly sticking their noses into each another's businesses, as well as sometimes swapping romantic partners, the group always get into the kind of comic situations that most other people never experience, especially during breakups.
Ross dates Rachel again after unwittingly agreeing to take responsibility for their breakup. Meanwhile, Monica gets stung by a jellyfish. (S4, E01)
Phoebe believes that the cat that jumped into her guitar case in Central Perk contains the spirit of her adoptive mum. (S4, E02)
Joey teaches the building superintendent ballroom dancing in order to prevent him from evicting Rachel and Monica. (S4, E04)
The One Where Chandler Crosses The Line: Chandler is guilt-ridden after kissing Kathy. Ross starts playing the keyboard again and everyone apart from Phoebe thinks he's terrible. (S4, E07)
Chandler is guilt-ridden after kissing Kathy. Ross starts playing the keyboard again and everyone apart from Phoebe thinks he's terrible. (S4, E07)
Phoebe's half-brother makes an astounding announcement which involves a massive decision for Phoebe. (S4, E11)
Phoebe undergoes an embryo transplant and becomes pregnant. Meanwhile, a simple challenge escalates into a full blown contest between the guys and the girls. (S4, E12)
Chandler has a hard time handling Kathy's new role in a play, in which she pretends to have sex with a handsome man, whilst Rachel is attracted to a customer. (S4, E13)
Joey has no time to shower after he comes home from a three-day fishing trip and has to head out to the set of Charlton Heston's new movie. (S4, E14)
Rachel throws Emily a fake going away party so she can see Joshua outside of work. Meanwhile, Phoebe's pregnancy cravings kick in as she longs for meat. (S4, E16)
The guys realise their TV is picking up a porno station for free, and Phoebe discovers she's carrying triplets. (S4, E17)
Phoebe gets to name one of her babies which leads to Joey telling Chandler that he has a terrible name. Rachel's plan to seduce her boyfriend goes awry. (S4, E18)
Monica and Rachel will do anything to get their old apartment back from the guys. Meanwhile, Ross spontaneously pops the question to Emily. (S4, E19)