Secrets of the Underground - Season 1 Episode 6

Seasons & Episodes

Episode 1

Secrets of the Underground – S01E01 – Capone’s Escape Tunnels

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Episode 2

Secrets of the Underground – S01E02 – Mystery of the Serpent Mound

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Episode 3

Secrets of the Underground – S01E03 – America’s Buried Massacre

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Episode 4

Secrets of the Underground – S01E04 – Rocky Mountain Monsters

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Episode 5

Secrets of the Underground – S01E05 – Great Lakes Bermuda Triangle

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Episode 6 Current

Secrets of the Underground – S01E06 – California’s Hidden Doomsday

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Episode 7

Secrets of the Underground – S01E07 – Secret History of the New World

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Episode 8

Secrets of the Underground – S01E08 – American Stonehenge

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Secrets of the Underground

Episode Overview

Rob Nelson heads to California to investigate a network for major fault lines that could set off an unprecedented mega-quake. Then, he explores a mysterious sinkhole that some believe is an endless pit to the center of the Earth.

Episode Details

Airdate: 2017-03-21
Episode Title: California's Hidden Doomsday
Runtime: 41
Genre: Documentary
Cast: Brad Aagaard, Gretchen Schmauder, Griffin Alberti, Janet Watt, Luther Strayer, Rob Nelson, Rufus Catchings, Tim Bechtel, Tom Parsons
Episode Rating: 6.9 (14 votes)
Release Year: 2017
Episode Runtime: 60 min
Rated: TV-PG
First Air Date: 2017-02-11
Seasons: 2
Status: Returning Series
Creators: Christopher Cassel, Jason Odell Williams

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