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Secrets of the Underground

Great Lakes Bermuda Triangle

Season 1 Episode 5
Rob Nelson 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 an unexplained, Bermuda Triangle-like phenomenon that has caused ships to disappear for centuries.
  • 43 min
  • TV-PG
  • Premiered 03/14/2017