The captain of a downed airliner must help his crew and passengers survive on a deserted jungle island in the midst of a power struggle - an adult version of "Lord of the Flies."
Rance Roden plans to kill off all the buffalo and thus cause the Indians to riot. After they destroy the US Cavalry, Rance and his gang will take over the West. Meanwhile, a Boston magazine gets wind of the buffalo slaughter and sends editor Kenneth Cabot and his associates to Casper, Wyoming to investigate.
An eccentric scientist tricks the stooges into joining himself and his daughter on an expedition to Venus. On Venus, the boys go exploring and encounter some cannibalistic amazons who plan to devour them. The stooges escape and take off in the spaceship which goes wildly out of control. As the ship is about to crash, the scene changes to the annual meeting of the Liars Club, where the stooges win the prize as the biggest liars in the world.
