Atalante and his companions have not managed to deliver the Boreades from the claws of the harpies. Despite the sadness and the downfall, they continue their quest for the Golden Fleece... But the ocean is not favorable to them: stranded on an unknown shore, they find themselves faced with mysterious spectres! A dangerous encounter that will lead them to the kingdom of Hades! An event for the many fans of the fervour Greek heroine!