NASA's Unexplained Files
3 Seasons
S4 E3
4/18/19
Aliens vs. Stalin at Area 51
When a former Area 51 insider alleges that the Roswell UFO incident was a nefarious Soviet conspiracy masterminded by Stalin, experts investigate if it was indeed an enemy plot against America -- or if the confession is just another cover-up.
Seasons
Episode
1
Pluto's Evil Twin
Episode
2
The Black Hole Next Door
Episode
3
Aliens vs. Stalin at Area 51
Episode
5
Planet of the Metal Aliens
Episode
7
Aliens in the Amazon
Episode
8