Rachel's pediatrician drops her as a client because she calls him incessantly to ask about any insignificant issue concerning Emma, so now she must find a new one, which puts Ross in an awkward situation. Meanwhile, Joey arranges a blind date for Phoebe. Also, as Chandler and Monica are preparing to leave for Tulsa, Monica receives a job offer from a prestige restaurant in Manhattan.

After Phoebe has a talk with Ross, it prompts her to realize that she's never had a long term relationship. Monica makes a startling discovery while visiting Chandler in Tulsa. Also, Joey goes on a date with an attractive woman and discovers that her apartment seems really familiar, although he doesn't remember sleeping with her before.

Ross and Rachel hire a nanny for Emma named Sandy and things seem to be going great. However, Ross is uncomfortable having a male nanny. Meanwhile, Chandler becomes upset when Monica says that somebody from her new job is the funniest guy she's ever met. Also, after Phoebe and Mike decide to take their relationship to a new level and exchange apartment keys, Phoebe gets a surprise visit from her ex-boyfriend David.

Ross finds a way to make Emma laugh - singing Sir Mix-A-Lot's "Baby Got Back." Needless to say, Rachel isn't as amused, once she finds out. Meanwhile, Phoebe meets Mike's parents and tries her best to leave a good impression. Also, while viewing Richard's old apartment, Joey and Chandler discover a video tape with Monica's name on it, which causes Chandler to freak out, since he thinks it's a sex tape.

Joey becomes convinced that Monica is having an affair, after Chandler sneaks back into town without him knowing, in order to have some alone time with his wife. Meanwhile, Rachel and Phoebe have a girls night out, and Rachel gives her phone number to a guy they meet at a bar. Also, Ross and Mike try to hang out together but it doesn't go very well, since they can't find a common interest to talk about.

Gavin gives Rachel a very interesting birthday gift while Ross begs Joey to stay away from Emma's hot new nanny. Meanwhile, Mike meets and then accidentally murders Phoebe's unusual pet.

A night at Mike's piano bar gives Monica a very showy moment in the spotlight. Ross struggles to move on after witnessing Gavin and Rachel kiss. Meanwhile, Chandler employs his secret skill to repair Joey's botched eyebrow-waxing job.

While reviewing their monthly expenses, Monica and Chandler discover that their situation is less than stellar. This results in Monica asking Joey to lend her some money without telling Chandler. When Chandler eventually finds out, Joey comes up with a lie that Monica needs the money for breast enhancement procedure. Meanwhile, Phoebe gets really excited as she and Mike decide to move in together, but her excitement quickly dissipates once she discovers that Mike doesn't see himself getting married ever again. Also, Rachel's attempt to baby-proof the apartment tampers with a frustrated Joey's sanity.

Chandler's jokey entry on his and Ross's college website leads to a faux burial service for the allegedly dead and obviously unpopular Gellar. Meanwhile, Joey is unwilling to give his favorite stuffed animal, Hugsy, to Emma. And Phoebe asks Monica to help her avoid a post-breakup tryst with Mike.

The gang heads down to Barbados for the paleontology conference. While Ross and Charlie are excited about attending multiple seminars, the rest of the gang just want to enjoy their time on the beach but the rainy weather prevents them from doing so. Things, however, are far from boring - Phoebe discovers that she still has feelings for Mike even though she enjoys spending time with David, Rachel feels lonely and struggles to keep her feelings about Joey to herself, and Chandler is amused by Monica's hair.

After leaving Barbados, Joey and Ross both attempt to come clean to each other that they're dating Rachel and Charlie, however, various obstacles constantly get in their way. Meanwhile, Monica gets a new haircut much to Chandler's dismay and Phoebe finds out that Mike has another girlfriend.

To help her younger sister, Amy, become a more responsible person, Rachel overrides Ross' strong protests and allows Amy to baby-sit Emma but soon regrets that decision. Meanwhile, Joey volunteers to write a recommendation letter for Monica and Chandler's adoption agency, however, he's concerned about not sounding smart. Also, Phoebe unknowingly thwarts Mike's "anniversary" surprise for her.

Monica and Chandler nervously prepare for a visit from an adoption worker who will decide if they would be suitable parents. Meanwhile, Phoebe and Mike keep changing their minds about donating their wedding money to a children's charity. And Ross tries to help Rachel overcome her fear of swing sets so that baby Emma can enjoy the playground.

As the big day approaches, Phoebe's wedding planner, Monica, makes everyone around her crazy because according to her - every little thing needs to happen around schedule. This doesn't sit well with Phoebe and she fires her. Unfortunately, on the wedding day New York is hit with the worst snowstorm its seen in 20 years, forcing plans to change. As a substitute for Phoebe's incarcerated father, Joey takes his role much too seriously. Meanwhile, Chandler and Ross discover that neither of them has a part in the wedding; however, after one of Mike's groomsmen is unable to attend, they compete for the open position by any means necessary.

Monica and Chandler visit their potential new house and bring Joey along, who's still upset about them moving, so he's determined to change their minds. Meanwhile, Phoebe learns that she can legally change her name to whatever she wants, so she considers something more exotic. Also, Ross gets tenure at his job, while Rachel's unfortunate job interview actually leads her to some new career opportunities.

Erica goes into labor and the new parents, Monica and Chandler, get a bit more than they bargained for. Meanwhile, Joey gets them a housewarming gift - Chick Jr. and Duck Jr., who unfortunately get trapped inside the foosball table. Also, after their night together, Ross realizes that he's still in love with Rachel and doesn't want her to leave. Other friends convince him to go after her and Phoebe races Ross to the airport in a bid to stop Rachel from leaving for Paris.

The six friends prepare to say goodbye and embark on the next chapters of their lives.