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Ancient Aliens

HistoryDocumentary, Mystery · 22 seasons

7.1TMDB

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Episode roomAncient Aliens S2 E4
Still 1 from Underground Aliens1 / 2

Ancient Aliens · Season 2 · Episode 4

Underground Aliens

Thursday, November 18 · 44 min · ★ 8.6 on TMDB

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Official trailer

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.

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