Indian braves Turok and Andar are trapped in a lost valley struggling to survive while they search for a way to return to their true home and tribe. But searching only seems to bring them more peril in this strange place where wonders from earth"s prehistoric past thrive: dinosaurs with gaping, hungry jaws, rival tribes of tree-dwelling monkey men and underground spider men, poisonous fruit that change the nature of peaceful beings, ghosts of dinosaurs long dead, and more!