Project SERPO. The Human Alien Exchange Program the Government Won't Confirm

Twelve American military specialists allegedly boarded an extraterrestrial craft in 1965 and vanished for thirteen years, bound for a world orbiting Zeta Reticuli. Thousands of leaked pages describe training curricula, packing manifests, medical protocols and debrief transcripts. Either the most elaborate intelligence hoax ever crafted, or the greatest secret in U.S. history.