Watch Free Online HD Moviesjoy. The cunning king Polidekt of the island of Serif sends the young hero Perseus to get the head of Gorgon Medusa, whose gaze turns people to stone. He is accompanied by the god of commerce and profits and the patron of thieves and athletes, Hermes, who pursues his personal interests. Perseus gets the head of Medusa, but uses it to save Andromeda, the daughter of King Kef.