
A soldier of fortune is tasked with finding the son of a client hiding in the Amazon jungle. A young man who is obsessed with the idea of searching for the riches of the country of Eldorado. The mercenary is infected by the guy's enthusiasm, and the two of them continue to explore an abandoned mine, which promises to make them the richest people in the world. But this arrangement does not suit the head of the local mafia, who is also not averse to appropriating the treasures of an ancient civilization.