Archaeologists Dr. Roger Bentley (John Agar) and Dr. Jud Bellamin (Hugh Beaumont) stumble upon a race of Sumerian albinos living deep under the Earth who have failed to evolve in over 5000 years. They keep mutant humanoid mole men as their slaves to harvest their food. The Sumerian albinos' ancestors were forced underground after the cataclysmic floods in ancient Mesopotamia. These people have lived underground for so long that they are weakened by bright light. Whenever their population increases they sacrifice the old to the Eye of Ishtar. They come to believe that Bentley and Bellamin are messengers of Ishtar. They give Bentley a slave, a beautiful woman named Adad (Cynthia Patrick) who is shunned by the albinos because of her tan skin. Adad and Bentley fall in love and he invites her to the surface, if they can ever get out!