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 episode follows the children of South Park, who remove all adults from the town by claiming that they molested them.
Relevant evidence: No