Entertainers Duke Mitchell and Sammy Petrillo parachute into the jungles of the Pacific island of Cola-Cola, where they meet primitive tribesmen, the chief's sarong-clad daughter Nona, and mad scientist Dr. Zabor (Bela Lugosi) conducting experiments in evolution.
Jealous of Mitchell's relations with Nona, Zabor has just the thing to make a monkey of him...