Taking a thorough review of the historical record, eyewitness accounts, whistleblower testimony, and deathbed confessions, Area 51 peers behind the classified secrets to understand the nature, history, and scope of the most controversial base in the United States. Redfern investigates the Cold War years, U-2 spy plane, SR-71 Blackbird, and chemical and nuclear weapon research as well as the base's link to an extraterrestrial presence on Earth, reports of alien autopsies, recovery of non-terrestrial spacecraft, and attempts to duplicate the fantastic, alien technology.