Seasons and episodes
1Season 1 Feb. 14, 2017
1 - 1Capone's Escape Tunnels Feb. 14, 2017- 1 - 2Mystery of the Serpent Mound Feb. 21, 2017
- 1 - 3America's Buried Massacre Feb. 28, 2017
- 1 - 4Rocky Mountain Monsters Mar. 07, 2017
- 1 - 5Great Lakes Bermuda Triangle Mar. 14, 2017
- 1 - 6California's Hidden Doomsday Mar. 21, 2017
- 1 - 7Secret History of the New World Mar. 28, 2017
- 1 - 8American Stonehenge Apr. 04, 2017
2Season 2 Oct. 28, 2017
2 - 1Legend of the Nazi Gold Oct. 28, 2017
2 - 2King Solomon's Treasures Nov. 04, 2017
2 - 3Tesla's Final Secrets Nov. 11, 2017
2 - 4Doomsday Volcano of the Gods Nov. 18, 2017
2 - 5Atlantis in America Nov. 25, 2017
2 - 6Mystery of the Ice Cave Dec. 02, 2017
2 - 7Lost Pirate City Treasure Dec. 09, 2017- 2 - 8Quest for the Gold Rush Fortune Dec. 16, 2017
Video trailer
Synopsis
A search for an underground escape route said to have been used by Al Capone. Also: who or what built earthen mounds in Washington state.
Original title Secrets of the Underground
TMDb Rating 1 1 votes
First air date Feb. 14, 2017
Last air date Dec. 16, 2017
Seasons 2
Episodes 16
Average Duration 60 minutes
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