The group find the plateau thanks to helicopter pilot Gomez (Fernando Lamas) but things soon take a turn for the worse when a dinosaur wrecks their helicopter and chases them into the jungle. Really you wonder why they were not a little more prepared. Soon things get worse as they are captured by a native tribe after finding a native girl (Vitina Marcus) and are prepared for the chop...
The plot is obvious but the film is good old fashioned adventure fun though fairly ridiculous in many ways, including the low budget "dinosaurs" which are basically large lizards with horns and plates glued to them!