Secrets of the Underground

★6.3 2017 2 Seasons Documentary

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...

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Episodes

Season 1 Season 2

1. Capone's Escape Tunnels

Feb 14, 2017 60m

2. Mystery of the Serpent Mound

Feb 21, 2017 60m

3. America's Buried Massacre

Feb 28, 2017 60m

4. Rocky Mountain Monsters

Mar 7, 2017 60m

5. Great Lakes Bermuda Triangle

Mar 14, 2017 60m

6. California's Hidden Doomsday

Mar 21, 2017 60m

7. Secret History of the New World

Mar 28, 2017 60m

8. American Stonehenge

Apr 4, 2017 60m

Actors

RN Rob Nelson Cast

SB Stefan Burns Cast

TB Tim Bechtel Cast