5x20 "The One with the Ride-Along"

Ross, Joey and Chandler go on a ride-along with Phoebe's cop boyfriend Gary, but in an attempt to save his sandwich from a car backfire, Joey unintentionally ends up saving Ross as well. Because of this, Chandler thinks that Joey cares more about Ross than Chandler — until he finds out Joey was only trying to save his sandwich. Meanwhile, stealing margarita ingredients from Ross's apartment, Rachel intercepts a message from Emily who is about to get married but is having second thoughts and is considering giving Ross another chance. When Rachel accidentally deletes it she agonises over if she should tell Ross.