Deep in a South American mountain hideaway lies a Secret Kingdom of Incas, descended from the race which Pizarro, the Spaniard, conquered. Into this realm Alfred Bell, scientist, finds himself transported by the Inca's men, forever to remain. Here he finds his true love, Nona. But, Tupac, the High Priest, is betrothed to her. How will Bell rescue Nona from the evil clutches of Tupac and to escape from this Incan Kingdom?