A band of adventures sets off to prove the existence of dinosaurs deep in the forest of the Amazon. After an unfortunate accident leaves them stranded, they must put their trust in a jungle girl to save them from the dangerous predators on the plateau.

Marguerite makes a deal with a local chieftain to get off the Plateau. The deal is to hand over Veronica to the chief for marriage, something she wants no part of. Like all such schemes, things don't work out as planned and the team must fight a variety of threats in order to save the chiefs daughter, Veronica's virtue, and their own necks.