Watch Series: Ancient Aliens Released in (2010) - Season 12 produced by USA, The TV Series categorized in Documentary, Fantasy, Mystery, Science-Fiction, History, and content rating TV-PG with duration 60 min broadcasted as these networks History, Streamed at Putlocker & directed by Kevin Burns, Susan E. Leventhal, David Silver. Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. - Season 12