The movie portrays the story of a space ranger named Dogen (played by Jeffrey Byron), who is in search of an intergalactic criminal with supernatural powers named Jared-Syn (played by Michael Preston). He has tracked this individual to a desert planet called Lemuria. The planet's human population lives in scattered mining towns, gathering valuable crystals which seem to be the basis for their technology and economy. Syn has posed as the leader of a strange group of nomadic humanoids called the "One Eyes" – so named because they symbolically gouge out one of their eyes – who are descendants of a vanished culture called the Cyclopians. The territorial nomads have begun a holy war to drive the human miners from their lands. Syn has instigated this crusade, but Dogen knows that Syn's plan is r