Secrets of the Underground Season 1 Episode 5
Great Lakes Bermuda Triangle
Rob descends into a cave 30 feet beneath Texas in search of evidence of a mass extinction event. Then, he heads to Lake Michigan to investigate a Bermuda Triangle-like phenomenon that has caused ships to vanish for centuries.
1 - 8American StonehengeApr. 04, 2017- 1 - 7Secret History of the New WorldMar. 28, 2017
- 1 - 6California's Hidden DoomsdayMar. 21, 2017
- 1 - 5Great Lakes Bermuda TriangleMar. 14, 2017
- 1 - 4Rocky Mountain MonstersMar. 07, 2017
- 1 - 3America's Buried MassacreFeb. 28, 2017
- 1 - 2Mystery of the Serpent MoundFeb. 21, 2017
- 1 - 1Capone's Escape TunnelsFeb. 14, 2017
