Rod Taylor stars as Glauco, the strongest man in Greece who finds himself the unwilling member of an expedition across the seas. His pal Pirro accepts money from a band of pirates in return for Glauco's undeniable muscle. When they land they are drugged and captured by a race of Amazons. Only Glauco escapes and falls in love with the fair Antiope. After considerable action and intrigue, the Amazons and Greeks learn to get along.