Newlyweds Frank and Alice ask Phoebe to be their surrogate. Joey gets a job as a tour guide at Ross's museum. Chandler asks Monica and Rachel for advice on how to sexually satisfy Kathy.
Phoebe's uterus is examined for implantation of the embryos. Meanwhile, a seemingly harmless game between Chandler and Joey against Monica and Rachel escalates into a full blown contest where the stakes are raised higher and higher.
After seeing Kathy's play, Chandler becomes convinced she is cheating on him with her co-star. Rachel develops a crush on one of her customers. Monica becomes jealous when she realizes she is no longer the 'hostess'.
Joey arrives on the set of his latest movie unwashed, after a three-day fishing trip with his dad. Rachel sets up Ross with the niece of her boss. Chandler goes through three phrases to help recover from Kathy cheating on him.
Chandler runs into Janice, and finds her more irritating than ever. Meanwhile, Ross attempts to learn how to play rugby to impress Emily and Monica obsesses over a electric switch.
Rachel organizes a fake good bye party for Emily so she can spend time with Joshua. A side effect from her pregnancy causes Phoebe to have a craving for meat.
Chandler and Joey discover that they're getting a free porn channel on their TV. Monica encourages Ross to tell Emily he loves her just before she leaves for London. Phoebe gets a shock when she visits her OB-GYN.
Rachel has an awkward encounter with Joshua's parents. Phoebe is offered the chance to name one of the triplets. Ross becomes paranoid when Emily goes to London with Susan.
Monica tries on Emily's wedding dress, and can't stop wearing it. Jealous of Ross's proposal to Emily, Rachel tries to talk Joshua into marriage. Chandler takes Joey to a sleep clinic when he starts snoring.
As Ross and Emily send out wedding invitations, he and Rachel each look back on their relationship together while Joey and Chandler look for a purpose in life.
At first Ross chooses Joey to be his best man but after a mishap at his bachelor party, he decides he wants both Joey and Chandler as his best men. Phoebe's mood swings makes Monica and Rachel nervous.
Phoebe tries to warn the gang that Rachel is coming to London to tell Ross she still loves him. Ross and Emily's parents get into an argument over the bill for the wedding. Monica and Chandler sleep together. The wedding ends with a gaffe.
Chandler must constantly kiss the girls to cover up a kiss he gave to Monica to hide their affair. Phoebe gets irritated when the gang constantly talk about London. Rachel puts Monica in charge of her love life. Ross tries to contact Emily.
The gang take Phoebe to the hospital after she goes into labor. Monica threatens to go on a date with a male nurse after Chandler claims they are "just goofing around." Joey gets treated for kidney stones.
Ross finally gets in touch with Emily and they try to work it out. Chandler gloats after Rachel reveals that Monica's secret boyfriend is the best sex she ever had. Phoebe and Joey debate if a selfless good deed exists.
Ross moves in with Chandler and Joey after Emily's cousin kicks him out of his apartment. Phoebe dates a health inspector. Rachel plays hard-to-get with Danny.
Joey finds himself constantly covering for Chandler and Monica's affair. Ross becomes angry when someone at work eats his sandwich. Phoebe and Rachel enroll in a literature class.
A bored Ross wreaks havoc in Chandler and Joey's lives. Rachel is uncomfortable with Danny's unusually close relationship with his sister. Phoebe runs into trouble whilst collecting donations for the poor during Christmas.