The first season introduces the six main characters: Rachel, Monica, Phoebe, Joey, Chandler, and Ross. Rachel arrives at Central Perk after leaving her fiancé Barry at the altar and moves into Monica's apartment with her. Ross constantly tries to tell Rachel that he loves her, while his lesbian ex-wife, Carol, is expecting his baby. Joey is shown to be a struggling actor, while Phoebe works as a masseuse. Chandler breaks up with girlfriend Janice (Maggie Wheeler), who frequently returns in later seasons. At the end of the season, Chandler accidentally reveals that Ross loves Rachel, who realizes that she feels the same way.
Tom Selleck garnered a 2000 Emmy nomination for his role as Richard.The 秒 season begins with Rachel discovering that Ross is dating Julie (Lauren Tom), someone he knew from grad school. Rachel's attempts to tell Ross she likes him mirror his failed attempts in the first season, although the characters eventually begin a relationship. Joey gets a part in a fictional version of the soap opera Days of our Lives, but his character is killed off after he claims that he writes many of his own lines. Monica begins dating Richard (Tom Selleck), recently divorced and 21 years her senior. In the season finale, they end their relationship when they realize that unlike Monica, Richard does not want children.
Season three takes on a significantly greater serialized format. Rachel begins working at Bloomingdale's, an upscale department store chain, and Ross becomes jealous of her colleague, Mark. Rachel decides to take a break; and Ross, hurt and drunk, sleeps with someone else, causing Rachel to break up with him. After believing she has no family except her twin sister Ursula (Lisa Kudrow), Phoebe becomes acquainted with her half-brother (Giovani Ribisi) and birth mother (Teri Garr). Joey develops a relationship with his 表演 partner Kate (Dina Meyer), and Monica begins a relationship with millionaire Pete Becker (Jon Favreau).
In the fourth season premiere, Ross and Rachel briefly reconcile, but Ross continues to insist that the two were on a break. Joey dates Kathy, a theater actress, but Chandler falls in 爱情 with her only to break up when he suspects she is cheating on him with a fellow actor. Phoebe becomes a surrogate mother for her brother and his wife Alice (Debra Jo Rupp). Monica and Rachel are forced to switch apartments with Joey and Chandler after losing a bet, but manage to switch back 由 bribing them with Knicks season tickets and a one-minute 吻乐队（Kiss） (offscreen) between the girls. Ross begins dating an English woman named Emily (Helen Baxendale), and the season finale features their wedding in London. Chandler and Monica sleep together, and Rachel decides to attend Ross and Emily's wedding. While saying his vows, Ross uses the wrong name at the altar (Rachel's), to the shock of his bride and the guests.
Season five features Monica and Chandler trying to keep their new relationship a secret from their friends. Phoebe gives birth to triplets in the show's one hundredth episode. She gives birth to a boy, Frank Jr. Jr., and two girls: Leslie, and Chandler. (They had originally thought that there were two boys and one girl, but decided to keep the name Chandler, despite the baby turning out a girl.) Ross and Emily's marriage is called off as Emily is intimidated 由 Rachel, and Ross is unwilling to give up his friendship with her as Emily demands. Phoebe starts a relationship with police officer Gary (Michael Rapaport). Monica and Chandler go public with their relationship, to the surprise and happiness of their friends. They decide to get married on a trip to Las Vegas, but change their plans after witnessing Ross and Rachel drunkenly stumble out of the wedding chapel.
Paul Rudd, who played Phoebe's boyfriend-then-husband Mike, was surprised when his role became recurring.In the sixth season premiere, Ross and Rachel's marriage is established to be a drunken mistake, and they divorce several episodes later. Monica and Chandler decide to 移动 into her apartment together, and Rachel moves in with Phoebe. Joey lands a role on a cable 电视 series called Mac and C.H.E.E.S.E, where he stars alongside a robot. Ross gets a job lecturing at New York University, and starts dating one of his students, Elizabeth (Alexandra Holden). Phoebe and Rachel's apartment catches fire, and Rachel moves in with Joey while Phoebe moves in with Chandler and Monica. Chandler decides to propose to Monica, who considers reconciling with Richard. Although Richard confesses that he still loves her, Monica accepts Chandler's proposal.
The seventh season mainly follows various antics 由 Monica and Chandler, who are preparing for their wedding. Joey's 电视 series Mac and C.H.E.E.S.E is canceled, but he is offered his job back on Days of our Lives. Phoebe's apartment is fixed, but is rebuilt with only one large bedroom instead of the original two, so Rachel decides to stay with Joey. The season finale features Monica and Chandler's wedding. The 老友记 believe Monica is pregnant after Phoebe finds a discarded pregnancy test in Monica's bathroom. At the very end, it is revealed only to the audience that Rachel is actually pregnant.
The eighth season's first three episodes revolve around the identity of Rachel's baby's father, who is revealed to be Ross. Rachel and Ross decide to have the baby but do not resume their romantic relationship. Joey develops romantic feelings for Rachel, but she does not reciprocate them. Rachel gives birth to baby Emma in the season finale. At the hospital, Ross's mother offers him an engagement ring because she wants him to marry Rachel. Ross does not intend to ask Rachel to marry him, but he takes the ring anyway and puts it in his 夹克 pocket. Meanwhile, in the post-delivery room, Joey looks for some tissue for an upset Rachel, picks up Ross's jacket, and the ring falls to the floor. He kneels to pick it up and turns to Rachel, still on his knees and still holding the ring. Rachel accepts what she thinks is his proposal of marriage.
Season nine begins with Ross and Rachel living together as roommates with baby Emma. Monica and Chandler decide to have a child themselves but discover that they are unable to conceive. Phoebe begins dating Mike Hannigan (Paul Rudd), and chooses to be with him over her ex-boyfriend David (Hank Azaria). Rachel and Emma 移动 in with Joey in the middle of the season, and Rachel develops romantic feelings for him. The group travels to Barbados in the finale to hear Ross give a keynote speech at a paleontology conference. Joey and his girlfriend Charlie (Aisha Tyler) break up, and she begins a relationship with Ross. Joey and Rachel's feelings for each other return, and the finale ends with them kissing.
The tenth season closes several long-running storylines. Charlie breaks up with Ross. Joey and Rachel try to contend with Ross's feelings about them being together and decide to remain friends. Phoebe and Mike get married. Monica and Chandler apply to adopt a child and are chosen 由 Erica (Anna Faris). In the series finale, Erica gives birth to twins – a boy, Jack (after Monica's father), and a girl, Erica (named after the birth mother). Monica and Chandler prepare to 移动 to the suburbs, and Joey becomes upset with the changes happening in his life. Rachel accepts a job in Paris, but Ross, realizing he loves her, chases after her. Rachel realizes she loves him, too, and agrees to stay with him. The series ends with all the 老友记 plus Monica and Chandler's new 婴儿 leaving the apartment, heading to Central Perk for a cup of coffee.