The international criminal Vinaro enjoys sending explosive wristwatches
to his enemies. Here he kidnaps ten-year-old Ramel whom he thinks can
lead him to the lost city of gold. Tarzan fights the evil Mr. Train,
six-foot-six bodyguard of Vinaro, and rescues Sophia, who has been left
to die with an explosive around her neck. Various animals help Tarzan
locate Vinaro's tanks and helicopters, the city and the boy.