Question: What involves a couple's exploration of a strange town and their encounters with its denizens after their vacation is sidelined by a car accident that the sixteenth episode of the fourth season of the animated television series "South Park" was inspired by ?
Sentence (from "The Wacky Molestation Adventure"): "The Wacky Molestation Adventure" is the sixteenth episode of the fourth season of the animated television series "South Park", and the 64th episode of the series overall.
Relevant evidence: Yes