Shortly before his death, King Edwynn entrusts the magical Sword of Justice, Xcalibur, to Prince Erwann instructing him to hide it in a underground lake. Returning from his mission, Erwann is turned to stone by the evil sorcerer Kwodahn (an interesting pun, it turns out, on ’quondam’). A witness to Erwann’s petrifaction is Erwann’s daughter, the young Princess Djana. As Kwodahn’s demonic powers spread like a virus, Djana vows to free her father and defeat the demon, restoring peace and justice to the land.