December 7‚ 1941‚ five brothers exploring a shaft on a small island off the coast of Washington State make an extraordinary discovery‚ only to be interrupted by news of Pearl Harbor. In the present Juan Cabrillo‚ chasing the remnants of a crashed satellite in the Argentine jungle‚ stumbles upon a shocking revelation of his own. His search to untangle the mystery leads him first to that small island and its secret.