In their search for the Golden Fleece, Jason and the Argonauts draw closer to the island of Colchis where King Aeetes jealously guards the golden treasure. At her father's command, Aeetes beautiful daughter, Medea, a powerful sorceress, unleashes a magical storm upon our heroes' ship and nearly destroys them. Angered that the confidant Jason survived, Medea devises a plan to destroy the source of his confidence. Using her magic, she kills Chiron, the Centaur, and Jason's wise and kindly teacher. When Atalanta's hawks bring back Chiron's broken sword, Jason realizes his mentor is dead and his confidence is shattered. Soon the spirit of Chiron visits Jason in a vision, giving him advice, which leads Jason to think that the key to his success lies within Chiron's sword. As they set out on their dangerous quest across the island, Medea, pretending to be an ally, offers Jason a magic potion to protect him. But Jason turns down the magic and instead welds the broken sword together. Soon ...