He is naked except for a loincloth. He has fasted for two days, seated on a rock at the edge of the prairie, when a group of conventioning certified public accountants is inexplicably catapulted one hundred thirty years into the past, along with a disc jockey and an open bar.
The accountants dance all night. They do not get out much. He proves to be quite adept at the hokey-pokey. Marv gets drunk and tries to kiss a coyote.
When the sun rises they are gone. He is seated on the rock again.