While travelling, Hercules is asked to intervene in a quarrel between two brothers, Eteocles and Polynices, over who should rule Thebes. Before he can complete this task, Hercules drinks from a magic spring and is hypnotized by a harem girl who dances the "Dance of Shiva", loses his memory and becomes the captive of Queen Omphale of Lydia. The Queen keeps men until she tires of them, then has them made into statues. While young Ulysses tries to help him regain his memory, Hercules' wife, Iole, finds herself in danger from Eteocles, current ruler of Thebes, who plans on throwing her to the wild beasts in his entertainment arena. Hercules slays three tigers in succession and rescues his wife, then assists the Theban army in repelling mercenary attackers hired by Polynices. The two brothers ultimately fight one another for the throne and end up killing each other; the good high priest Creon is elected by acclaim.