During archaeological excavations in Peru, an ancient mummy is found, belonging to a Spanish Dominican monk. When an attempt is made to study it with the latest instruments, it turns out that strange liquid “gold” is contained in the mummy’s skull. On the excavation site, a subterranean treasure chamber is discovered, which turns out to be a giant trap that kills anyone who tries to get inside. Archaeologist Henry Conklin and his assistants attempt to penetrate the secrets of an ancient civilization hidden by priests many centuries ago.