Could Human Evolution have been altered by an Alien intervention? Archaeological Professor Hiram May has stumbled upon a secret chamber inside a crumbling Chimu Temple in Peru. Paintings on pottery in the chamber tell the story of an expedition which may have taken their most sacred religious treasures into the mountains just before the Inca invaded and conquered them. Professor May gathers a small expedition and attempts to follow the clues on the pottery, but the Andes are vast and unexplored in the region he believes the lost town lies. Christopher Allen is an ex-cop visiting Peru with friends. A chance encounter with Professor May secures him an invitation to join the expedition. Renting an airplane for the professor, they take to the air and soon locate what could be the lost city. Wasting no time, Professor May and the expedition start the grueling trek to the ruins. But the pilot also understands what they have found and makes a deal with local guerrillas for a share of any treasure if he leads them to the city. Reaching the city first, the expedition has begun mapping and exploring the city when the guerrillas attack. Chris and expedition member Tammy Hanson manage to escape and flee into the forbidding mountains. Chased by the guerrillas, they stumble onto a secret that could shake the very foundations of science and religion and usher in a new era of technological advancement and enlightenment. All they have to do is fight off the guerrillas, rescue any survivors of the attack and make it back to civilization alive."