Secrets of the Underground: Series 1
Rob Nelson, an ecologist by trade and an explorer by pastime, travels the country to investigate long-lost, subterranean phenomena
Part 1: Capones Escape Tunnels
Investigating rumors of a secret underground escape route used by the infamous gangster Al Capone; trying to uncover who or what built a vast landscape of earthen mounds in Washington State.
Part 2: Mystery of the Serpent Mound
Exploring mysterious tunnels beneath Denver’s airport, capitol building and downtown to investigate rumors of a secret organization that operates below; in Ohio, trying to uncover the ancient secrets of a giant mound shaped like a serpent.
Part 3: Americas Buried Massacre
Hunting for a legendary mass grave that could expose a dark secret of America’s industrial past; using cutting-edge technology to find out why a giant lake is mysteriously disappearing high in the mountains.
Part 4: Rocky Mountain Monsters
Examining a set of bizarre markings that suggest a violent clash between prehistoric beasts; in California, Rob investigates to see if a strange lake is a home to alien life.
Part 5: Great Lakes Bermuda Triangle
Descending into a cave 30 feet beneath Texas in search of evidence of a mass extinction event; heading to Lake Michigan to investigate an unexplained, Bermuda Triangle-like phenomenon that has caused ships to disappear for centuries.
Part 6: Californias Hidden Doomsday
Rob Nelson heads to California to investigate a network for major fault lines that could set off an unprecedented mega-quake. Then, he explores a mysterious sinkhole that some believe is an endless pit to the center of the earth.
Part 7: Secret History of the New World
Rob investigates a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus. Then, he heads to California where a dormant super volcano may be showing new signs of life.
Part 8: American Stonehenge
Investigating the mysterious pattern of rocks at the bottom of Lake Michigan known as Underwater Stonehenge; at the notorious Alcatraz prison, Rob uses state-of-the-art technology in search of rumoured escape tunnels.