February 14, 2017 • 1h
Rob Nelson investigates rumors of a secret underground escape route used by the infamous gangster Al Capone. In Washington state, ...Read more
February 21, 2017 • 1h
Rob Nelson explores mysterious tunnels beneath Denver's airport and capitol building to investigate rumors of a secret organizatio...Read more
February 28, 2017 • 1h
Rob Nelson hunts for a legendary mass grave that could expose a dark secret of America's industrial past. High in the mountains, a...Read more
March 7, 2017 • 1h
Rob Nelson examines a set of bizarre markings that suggest a violent clash between prehistoric beasts. In California, he investiga...Read more
March 14, 2017 • 1h
Rob descends into a cave 30 feet beneath Texas in search of evidence of a mass extinction event. Then, he heads to Lake Michigan t...Read more
March 21, 2017 • 1h
Rob Nelson heads to California to investigate a network for major fault lines that could set off an unprecedented mega-quake. Then...Read more
March 28, 2017 • 1h
Rob investigates ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus. T...Read more
April 4, 2017 • 1h
Rob Nelson investigates the mysterious pattern of rocks at the bottom of Lake Michigan known as Underwater Stonehenge. At the noto...Read more