Turk and Carla set the date for their wedding. J.D. is worried about losing his close friendship with Turk and asks him out on a "man date." Elliot gets back together with her ex-boyfriend Sean (Scott Foley), but the relationship has a rocky start. Carla obsesses over whose urine is in an unmarked container left at the nurses' station. The title refers to the featured song "Don't Stop Believin'," by one of J.D.'s favorite bands, Journey.