Synopsis: After Greek fisherman Demetrios rescues Princess Antillia at sea, he returns her to her home country of Atlantis. Once there, he is enslaved due to the evil machinations of Zaren. Using sorcery, Zaren has made the inhabitants of Atlantis into slaves for mining crystals, which will then be used for a death ray to take over the world. Demetrios finds an allay in Azor, a high priest who helps fight back against Zaren.