Mad Professor Erasmus has long forgotten his first creation, Stitch Head, leaving the lonely patchwork monster to take care of Castle Grotteskew all by himself. But when the professor is kidnapped by crusty pirates, Stitch Head decides to risk his almost-life to save his creator. He'll need a little help from his new friends, the Creature and Arabella, to learn to embrace his inner pirate and sail the seven seas in pursuit of his missing mentor.