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Ancient Aliens - Season 2 Episode 4 : Underground Aliens

Ancient Aliens
6.7/10 by 160 users

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? Rumors of the U.S. military working alongside aliens in a secret base inside a mesa in New Mexico continue to swirl, Native American legends mention strange inner-Earth beings, and recent archaeological discoveries in the Yucatan may point to an extraterrestrial reality behind.

Title Ancient Aliens - Season 2 Episode 4 : Underground Aliens
Subtitle Available south-korea.png france.png Germany.png italy.png espain.png belanda.png portugal.png hungaria.png ETC.
Alternative Titles Nos ancêtres les extraterrestres, Ancient Aliens - Neue Erkenntnisse, Alienígenas ancestrales, Generacion alien, Goście z Przeszłości
First Air Date 2010-04-20
Last Air Date 2020-04-18
Number of Episodes 183
Number of Seasons 15
Genres Documentary, Mystery,
Networks History,
Casts Giorgio A. Tsoukalos, Robert Clotworthy
Giorgio A. Tsoukalos
Narrator
Narrator
Robert Clotworthy
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