The film starts with narration from Mother Nature discussing an experiment with Father Time that went wrong. On the (fictional) island of Wongo she created a tribe where the men are brutish and ugly and the women are beautiful. She then creates a tribe on a nearby island where the women are repulsive and the men are strong and handsome. For years the two tribes lived unaware of each others existence, until ape men from across the ocean attack the village of handsome men.