Jason, a fearless sailor and explorer, returns to the kingdom of Thessaly after a 20-year voyage to make his rightful claim to the throne. But to do so, Jason must first find the magical Golden Fleece. He selects a crew and with the help of Hera, Queen of the Gods, sets sail in search of the Fleece. Jason and his crew must overcome incredible obstacles including a 100-foot bronze giant, the venomous Hydra, a huge creature with the heads of seven snakes, and a battle with an army of skeletons.