Louis Silvani, Air Force civil engineer, has neglected and lost his family because of his obsession with UFO research. While presenting visual evidence of highly technological nonhumans living underground or in mountains on Earth at a UFO enthusiasts' event in Pennsylvania, he meets Mary Ellen Velarde, a Jicarilla Apache from Dulce, New Mexico. She intrigues Louis with her knowledge about him, and she convinces him go with her to Dulce and Mount Shasta, locations of alien activity, while not revealing the true nature of her quest.

Mary Ellen's close contact with her spirit guides leads them to encounter friends from their pasts who agree to help them break into the base at Dulce, a facility rumored to be a joint science operation between nonhumans and humans. The final team consists of Louis, Mary Ellen, former Army Ranger and tactical specialist Robert, former Air Force security police Deborah, and Katrina, a retired CIA asset with telekinetic abilities that she uses at great risk.

With their plan of attack created and their weapons training completed, the team heads to their target to free the victims of the science operation. They find that human infants and adults are experiments in a callous reptilian race's effort to use and control human life-and paramilitary humans are complicit in the horror. Once inside the underground base, how can they save the victims and safely escape? There is one more nonhuman race that they must find, who may have the answers to their dangerous endeavor and to their purpose in the universe.