Lucie Ortega, a beautiful nightclub singer at the Club Saludos, contacts Rio for help. She needs to leave Buenaventura immediately to be with her sick mother in the Andes but cannot leave unless her boss at the club pays her the 75 million Pesos he owes her. Rio - not knowing that Lucie has been sent to him by the always unreliable Furman - naturally agrees to help an attractive damsell in distress, and goes to the Club Saludos and gets the money from Lucie's boss, Mesarigos. Shortly afterwards, Mesarigos is found murdered, and Lucie and the money have vanished. Rio, who was Mesarigos' last visitor, gets charged with murder.

When a satellite accidentally crashes into the jungle, Jenner asks Rio to accompany the recovery team on their retrieval mission. One of the expedition members is Dr. Marie Deschaux, the sexy French scientist who designed the satellite. Marie has ulterior motives for wanting to get to the satellite so quickly: she has secretly used plutonium in the satellite, so she is intent on killing everyone who finds out. Rio reluctantly has to help her find it before the plutonium kills thousands of innocent people.