As the gang are getting ready to celebrate Monica and Chandler's engagement, Monica accuses Rachel of stealing her thunder when she sees her kissing Ross. Joey gets into character as he prepares for the role of a 19-year-old.
Monica is shocked after learning that her parents have spent her wedding fund on their beach cottage. Joey makes fun of Rachel when he finds out she's reading an erotic novel.
Monica becomes obsessed with finding Phoebe's grandmother's secret cookie recipe. Rachel bosses Joey around when he's not that excited to learn how to sail.
Things spiral out of control when Monica and Chandler reveal each other's secrets. Rachel interviews candidates for the position of her assistant. Joey is offered a part on Days of Our Lives.
Chandler is having a hard time being photographed for his and Monica's engagement photo. Joey gives Tag tips on how to pick up women, which annoys Rachel.
Things get awkward after Joey and Ross accidentally take a nap together. Phoebe and Rachel butt heads over which one would be Monica's maid of honor.
Ross is shocked when he finds out that his book in the library is located where students go to fool around. The gang try to convince Janice not to attend Chandler and Monica's wedding.
During Thanksgiving dinner, Chandler becomes tense when Phoebe sneaks a dog into the apartment. Rachel tries to get close to Tag, and Ross wants to win a game.
Monica goes overboard when she tries to impress her neighbors. Ross gives Phoebe her first bike. Rachel and Tag try to keep their relationship a secret at work.
Ross comes up with an idea to introduce Ben to Hanukkah. Phoebe tries to make Rachel come back to live with her and leave Joey's place.
Rachel and Chandler become addicted to the cheesecake that gets delivered to them by mistake. Phoebe is mad at Joey for ditching her to go on a date.
Each one of the gang stays awake all night after they gather on the roof to see a passing comet.
Rachel buys Joey a new recliner after she breaks his old one, Rosita. Monica and Ross go to their family's house to get their old belongings before the house is sold. Phoebe starts a new job.
As Rachel turns 30, the rest of the gang reminisce about their own 30th birthdays, and she decides to break up with Tag.
Joey gets a part on Days of Our Lives, and he accidentally tells another actress that she's been removed from the show. Ross plans to play the bagpipes in Chandler and Monica's wedding.
Ross decides to get back at Rachel after she teaches Ben practical jokes. Chandler is mad at Monica after learning an old secret.
Monica takes the girls to buy her wedding dress where it becomes a battle between shoppers. Joey and Ross compete to win over a girl they met.
Rachel goes with Joey to an event for Soapy awards, and he ends up taking someone else's award. A male student tricks Ross into thinking that he loves him to get better grades.
When Ross and Monica's attractive cousin comes for a visit, Ross is infatuated with her. Rachel and Phoebe throw Monica a bridal shower. Joey auditions for a part that requires sensitive handling.
When Rachel runs into her former college friend Melissa, she gets mad when Melissa can't remember a kiss they once shared. Chandler and Ross compete over who got the best tuxedo.
As Monica and Chandler's wedding approaches, they become nervous as neither of them has written their vows yet, and they look back at their journey together.
Chandler and Monica head to Vegas so that Chandler reconnects with his estranged dad. Rachel gets into trouble for going for a ride with Ross in Monica's Porsche.
Joey has a part opposite a well known actor in a movie. Chandler is freaking out as the wedding gets closer.
A positive pregnancy test leads to a misunderstanding between the gang. Chandler is found after he runs away. Joey makes it in time to officiate Monica and Chandler's wedding.