After King Acrisius learns that his grandson is destined to kill him, he throws the boy into the sea inside a wooden chest. But Perseus survives.

Years later, he is tricked into hunting Medusa, a terrifying creature with snakes for hair and eyes that turn people to stone. On his adventure, he meets Andromeda, a princess about to be eaten by a sea monster. Can Perseus kill the gorgon and rescue the princess?