A Greek Fisherman brings an Atlantean Princess back to her homeland which is the mythical city of Atlantis. He is enslaved for his trouble. The King is being manipulated by an evil sorcerer who is bent on using a natural resource of Atlantis to take over the world. The Atlanteans, or rather the slaves of Atlantis, are forced to mine a crystalline material which absorbs the suns rays. These crystals can then be used for warmth. The misuse of science has created weapons out of the crystals that can fire a heat ray to destroy whatever it touches.
Sal Ponti
as Demetrios
Joyce Taylor
as Princess Antillia
John Dall
as Zaren
William Smith
as Captain of the Guard
Edward Platt
as Azor the High Priest
Frank De Kova
as Sonoy the Astrologer
Berry Kroeger
as Surgeon
Edgar Stehli
as King Kronas
Wolfe Barzell
as Petros, Demetrios' Father
Jay Novello
as Xandros the Greek Slave
Paul Frees
as Narrator / Multiple Voices (voice)
Nestor Paiva
as Megalos (uncredited)
