Carol and Ross decide to have a threesome to spice up their marriage. Rachel goes to Joey's and kisses him. Chandler and Monica have sex and end up together anyway. Susan meets Carol. Rachel catches Barry cheating.

Ross gets his student evaluations and one student writes that he's hot. Even though it could cost him his job, he considers dating her. An ex-girlfriend of Chandler's from college is directing the new Al Pacino movie and Joey wants an audition. A fire starts in Phoebe and Rachel's apartment, forcing them to find temporary living spaces with Monica and Joey.