Ancient Aliens is counting down the world's top ten alien cover-ups, from the famous Roswell Incident to a secret military base rumored to be housing ET technology to recently released UFO videos captured by cameras on Navy fighter jets. Has there been a massive cover-up regarding the truth about an extraterrestrial presence on Earth?

Starring:

William Henry, Robert Clotworthy, Andrew Collins, Nick Pope, Erich von Däniken, Linda Moulton Howe, Philip Coppens, David Childress, Mike Bara, Jonathan Young, George Noory, 8 more, Nick Redfern, Robert Schoch, Michael Dennin, Hugh Newman, Giorgio A. Tsoukalos, David Wilcock, Bill Birnes, Ariel Bar Tzadok

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