- Original release
- Previous episode S02E03 - Underwater Worlds
- Number S02E04
- Country United States
- Genres Documentary, Fantasy, History, Science-Fiction
-
External links
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Last update
17 mars 2024 - 05:33
on 11 databases
Underground Aliens
If extraterrestrials influenced human history, can evidence of their existence be found in hidden tunnels and caverns around the world? Could a cave in Ecuador contain metallic books inscribed with secrets of alien technology? Was an ancient underground city in Turkey built with alien help... or as a refuge from an alien attack?
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S02E05 - Aliens and the Third Reich
Episodes (10)
Season 2
