Ross har problemer med sin abe, Chandler må afskedige en kvinde på arbejdet, Carol og hendes kæreste går på babykursus og Joey støder på Phoebes tvillingesøster.

Rachel bliver indlagt på hospitalet efter en ulykke i lejligheden. Hun møder der mange søde læger. For at kunne bruge Monicas sygehusforsikring bytter hun identitet med Monica. Det fører til problemer når de bliver inviteret ud af lægerne.

Rachel venter tålmodigt på Ross i lufthavnen, uvidende om at han vender tilbage fra Kina sammen med sin nye kæreste, Julie.

Fyrene bliver ubehageligt til mode ved tanken om Carols modersmælk. Rachel er irriteret over Monicas voksende venskab med Julie.

Ross tager til San Diego for at besøge hans abe Marcel. Joey bliver forfulgt af en fan.

Rachel og Monica konkurrerrer om Jean-Claude Van Dammes følelser efter at have mødt ham på settet til en filmoptagelse. Ross og Marcel tager på rundvisning i byen.

Ross og Rachel har endelig sex. Monica bliver betaget af en af hendes forældres venner.

Joey flytter ud efter et skænderi med Chandler. Monicas far finder ud af, at Monica dater en af hans bedste venner.

Joey overvejer at flytte tilbage til Chandler, men Chandler har fået en ny sambo.

Joeys karakter i en sæbeopera bliver droppet ned i en elevatorskakt.

Chandler vil gerne have hans nye, bizarre sambo Eddie ud, men Eddie nægter at flytte.

Phoebes verdensopfattelse bliver knust, da hun finder ud af, hvordan "Old Yeller" ender.

To bøller jager Chandler og Ross ud af Central Park. Phoebe møder en bror, som hun aldrig vidste, at hun havde.

Der opstår forviklinger, da Rachels fremmedgjorde forældre dukker op til et surpriseparty, som gænget har arrangeret til hende.

Phoebe bliver smittet med skoldkopper af en baby, netop en gammel flamme dukker op efter to år.

Rachel går med til at være brudepige til hendes eks-forlovedes bryllup.

Monica overvejer drømmejobbet i Peters nye restaurant, men Phoebe har ikke helt fidus til hans tilbud. Joey og Chandler adopterer en lillebitte kylling og en and. Og Ross går glip af en vigtig plads i panelet hos Discovery Channel, da han skal hjælpe Rachel, der måske har brækket et ribben.

With two days left until Emily's departure back to England, Rachel throws a fake party for her, just so that she can see Joshua outside of work. And a pregnant (vegetarian) Phoebe craves meat.

Chandler and Joey discover that they're getting a free porno station on their TV. Monica encourages Ross to tell Emily he loves her just before she leaves for London. Phoebe gets some shocking news when she visits her OB-GYN.

When the friends discover that Ugly Naked Guy is moving out of his apartment, Ross leaps at the opportunity to get his own place again. Phoebe finds out about Monica and Chandler's relationship, and tries to get them to reveal the truth by seducing Chandler.

Barry and Mindy's impending divorce prompts the gang to fantasize about what their lives might be like if they'd all taken different courses. Ross is still married to Carol, and Rachel is married to Barry, but fawning over famous soap star Joey Tribbiani. Monica is still fat and dating a doctor. Chandler is an aspiring writer and Phoebe is a Wall Street shark for Merrill Lynch.

The gang continue to fantasize about how different their lives could have been. Carol and Ross decide to have a threesome to spice up their marriage. Rachel goes to Joey's but is incredibly nervous about cheating and gets drunk. Meanwhile, Monica's dinner date falls through and Chandler tries to cheer her up but things take an unexpected turn.

Ross meets Elizabeth's father for the first time and unfortunately he takes an instant disliking to Ross. However Paul does hit it off with Rachel and she tries to talk Ross up but does so with mixed results. Joey almost gets fired from "Mac and C.H.E.E.S.E." after offending the operator of the robot. Meanwhile, Phoebe writes a book based on Monica and Chandler.

As Monica starts planning her wedding she's shocked to find out that her parents have spent her entire wedding fund. However, her spirits are restored when she discovers that Chandler has enough savings for her dream wedding scenario. Phoebe temporarily moves into Ross's apartment, bringing her massage clients with her. This leads to some weird encounters for Ross. Meanwhile, Joey mocks Rachel when he finds an erotic novel she is reading.