In a post-apocalyptic world, a warrior wandering through the desert comes upon a group of settlers who are being menaced by a murderous gang that is after the water they control.

After his brother Robeson disappears without a trace while exploring Africa in search of a legendary ‘white tribe’, Allan Quatermain decides to follow in his footsteps to learn what became of him. Soon after arriving, he discovers the Lost City of Gold, controlled by the evil lord Agon, and mined by his legions of white slaves.