The real Iolaus returns to warn Hercules of the end of the world.
Hercules helps an Egyptian princess retrieve the stolen mummy of a king, which has come to life and is bent on killing.
Hercules promotes peace by organizing an athletic competition between the warring Spartans and Eleans, thus creating the Olympic Games.
Iolaus faces execution for a robbery committed by Autolycus, king of thieves.
Hercules drops his vengeful quest in order to aid a village enthralled by a snake-woman.