Ancient Aliens S2E4 — Underground Aliens

7.3

Ancient Aliens•Season 2•Episode 4

Underground Aliens

7.3/10 · 268 votesNov 18, 201044 min

Ranked #5 of 10 in Season 2•matches the season avg

Discussion

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...

Previous episodeE3 · Underwater Worlds Next episodeE5 · Aliens and the Third Reich

Seasons22

All 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Season 2 Episodes10

Mysterious Places

Gods & Aliens

Underwater Worlds

Underground Aliens

Aliens and the Third Reich

E6 7.2

Alien Tech

E7 6.9

Angels and Aliens

E8 7.5

Unexplained Structures

E9 7.1

Alien Devastations

E10 7.1

Alien Contacts

Cast17

Robert Clotworthy

Narrator (voice)

Giorgio A. Tsoukalos

Self

William Henry

Self

Ariel Bar Tzadok

Self

Jonathan Young

Self

David Childress

Self

Erich von Däniken

Self

Linda Moulton Howe

Self

David Wilcock

Self

George Noory

Self

Philip Coppens

Self

Nick Pope

Self

Discussion

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Episode Summary

"Underground Aliens" is episode 4 of Ancient Aliens season 2. It scored 7.3/10 from 268 votes, ranking #5 of 10 episodes this season (season average 7.3). It aired on November 18, 2010.

Next: E5 · Aliens and the Third Reich Best of Season 2