Zombie nudists attack campers five years after the closure of the Sunny Buttocks nudist colony in various musical numbers.
Judge Rhinehole orders the Sunny Buttocks Nudist Camp closed down as an affront to the community. The members of the camp enter into a suicide pact, but vow to return for vengeance. Five years later, a group of campers on a retreat argue with each other about religion and sing big production numbers as the group begins experiencing an attrition problem.