If ancient aliens visited Earth, were they responsible for catastrophes, wars and other deadly disasters to control the fate of the human race? The story of the Great Flood sent by deities to destroy civilizations exists in many prehistoric cultures.

David Jacobs, David Sereda, David Wilcock, Erich von Däniken, George Noory, Giorgio A. Tsoukalos, Jason Martell, John Van Auken, Michael Dennin, Philip Coppens, Thomas Bullard, William Bramley, William J. Fulco