While seeking out undiscovered species in the South American rain forests, scientist Alfred Bell saves a spectacularly-dressed native chieftain from an attacking cougar. In the midst of the chieftain's gratitude, shots ring out in the distance signifying an attack on Bell's camp. During the skirmish, Bell is wounded by a poisoned dart and loses consciousness. He awakens in the chieftain's kingdom, the last remnants of the Incan empire! And he can never leave. . .