The One in Vegas: Part 1 (S05E23)

The gang decides to go out to Las Vegas to surprise Joey and to celebrate Monica's and Chandler's one-year anniversary. Things gets rough when a jealous Chandler finds out that Monica had lunch with Richard and everyone discovers that Joey is working in a casino to help finance the movie. Rachel and Ross, who come on a later flight, play practical jokes on each other. First of a two-part episode. (Warner Bros. UK)