Ancient Aliens - Season 2 Episode 4 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? 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.
- Genre: Documentary, Mystery, Sci-Fi & Fantasy
- Studio: History
- Keyword: paranormal investigation, ancient aliens theory, ufo conspiracy, megalith, petroglyph
- Cast: Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken
"
"
"
"
"
"
"
"
"
"
