Secrets of the Underground Season 1 Episode 3
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Secrets of the Underground Season 1 Episode 3

Secrets of the Underground Season 1 Episode 3

Rob Nelson hunts for a legendary mass grave that could expose a dark secret of America’s industrial past. High in the mountains, a giant lake is mysteriously disappearing, and Rob uses cutting-edge technology to find out why.

Views: 31

Serie: Secrets of the Underground

Episode Title: America's Buried Massacre

Air Date: 2017-02-28

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