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.
David Childress
Self
Robert M. Schoch
Self
Robert Clotworthy
Narrator (voice)
Giorgio A. Tsoukalos
Self
Ariel Bar Tzadok
Self
Jonathan Young
Self
Erich von Däniken
Self
Linda Moulton Howe
Self
David Wilcock
Self
History's Greatest Mysteries78%
Marvel Studios Legends73%
Files of the Unexplained66%
Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed75%
Live to 100: Secrets of the Blue Zones76%
