When New York network television cameraman ANDY COOPER is dragooned from his cushy Sports Division berth to shoot a National Geographic special about the billion dollar treasures of El Dorado at a secret lake in the Andes, he becomes the professional target for head-hunting natives, deadly jaguars, anacondas and alligators and most of all, the treacherous human killers within the expedition including the beautiful but double-dealing Celia.