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)
Monica tries to prove that she can cater a gourmet meal for her mother. Meanwhile, Chandler gets into an embarrassing situation while dating Rachel's boss. (S4, E03)
Joey teaches the building superintendent ballroom dancing in order to prevent him from evicting Rachel and Monica. (S4, E04)
Joey thinks that Chandler hates Joey's new girlfriend, Kathy. However, little does he know, it's exactly the opposite. (S4, E05)
Ross's new girlfriend seems nearly perfect until he discovers that her apartment is incredibly dirty. Chandler becomes more familiar with Joey's girlfriend. (S4, E06)
Chandler is guilt-ridden after kissing Kathy. Ross starts playing the keyboard again and everyone apart from Phoebe thinks he's terrible. (S4, E07)
On Thanksgiving, Joey punishes Chandler for kissing Kathy and Monica gets a surprise when she visits an eye doctor who turns out to be Richard's son. (S4, E08)
The One Where They're Going To Party! The guys try to be spontaneous and wild and Monica must decide between a steady job as head chef of a restaurant or her catering business with Phoebe. (S4, E09)
Ross struggles to maintain a long-distance relationship. Meanwhile, Monica conjures a scheme to establish authority at her new restaurant job. (S4, E10)
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)
Chandler runs into Janice, now divorced, and finds her more irritating than ever. Meanwhile, Ross plays rugby in an attempt to impress Emily. (S4, E15)
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)
Monica has an aspirational phase of wearing Emily's wedding dress. Meanwhile, Chandler forces Joey to get treatment for his snoring at a sleep clinic. (S4, E20)
The friends get invitations to Ross's wedding, but not all of them are going. Ross and Rachel reminisce separately about when they dated each other. (S4, E21)
After Joey almost loses Ross' wedding ring, Ross asks both Joey and Chandler to be his best man. Meanwhile, the girls host a baby shower for Phoebe. (S4, E22)
The One With Ross's Wedding (1): Most of the gang are in London for Ross' wedding. After talking with Phoebe, Rachel realizes she still loves Ross, resulting in a spontaneous decision... (S4, E23)
The One With Ross's Wedding (2): Phoebe tries to warn the gang that Rachel is coming to London to declare her love to Ross. Meanwhile, Ross and Emily's parents are quarrelling over money. (S4, E24)