Joey convinces Ross to pick him as his best man instead of Chandler. He throws a great bachelor party, but the next morning he's shocked to find out that the wedding ring is missing and he suspects that the stripper stole it. Meanwhile, Phoebe is experiencing major mood swings due to her pregnancy and the girls decide to throw her a baby shower to cheer her up, but it only makes matters worse.
Chorus girl Cupcake poses as a princess so Autolycus can steal a sapphire.
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.
Chandler takes Joey to a sleep clinic when he starts snoring. After Ross asks Monica to pick up Emily's wedding dress, she tries it on and can't stop wearing it. Meanwhile, jealous of Ross's proposal to Emily, Rachel tries to talk Joshua into marriage.
Ross proposes to Emily. Monica and Rachel try to win their apartment back from Chandler and Joey.
Ares makes Iolaus and Autolycus pay dearly for turning Discord into a chicken; Katherine would rather be a pig.
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.
Iolaus and Autolycus race to save Hercules after he is put on a butcher's chopping block following his transformation into a pig by Discord.
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.
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.