Codes and Conspiracies - Season 2 (2015)

Unravel the seamy secrets of Las Vegas. Where Mobsters once ruled. Where casinos suck you in to keep you playing and losing. Why was this a Nazi target for wartime sabotage, a test ground for Atomic Bombs, and a meeting place for 9/11's terrorists?

From the rallies held at Madison Square Garden, to the plots to steal the secrets to the nation's weapons of war, the American Nazis terrorize the United States in the 1930s and wage a battle against the FBI and an undercover team of amateur spies.

Did aliens help build the Pyramids and other monuments? Or does the "ancient astronauts" idea go back to Swiss author Erich von Daniken, whose books challenge religion and science? Who were his enemies? What were his influences? Why was he jailed?