Jim explores the heights and depths of an ancient culture in 1956's cult classic, "The Mole People," starring John Agar, Hugh Beaumont, Cynthia Patrick, Nestor Naiva and Alan Napier. An expedition finds a a lost city located deep within a mountain that could be the basis for the story of "The Great Flood." But when the explorers, first thought to be gods, are found to be mortal the high priest demands a lethal punishment. Find out more on this episode of "Monster Attack."