First air date: Apr 20, 2010
Episode duration: 00h 42m
Rating: (6.8) based on 253 votes
Status: In production
Seasons: 20
Episodes: 259
Starring: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress
Created by: Kevin Burns
Genre: Documentary, Mystery, Sci-Fi & Fantasy

Trailer

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.

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