Secrets of the Underground (2017)

Season 1

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.

Released Feb. 14, 2017 Episode 60 min 10+

Genres: Documentary, Reality

Keywords: mdblist.has-trailer, imdb.underground-tunnel, imdb.exploration

Watch Providers: Spectrum On Demand, Discovery+ Amazon Channel, Philo, YouTube TV

Production Companies: Science Channel

Network: Science

Country: United States
Languages: English

IMDb

6.3

/196/

Trakt

/15/

TMDb

/4/

S1E1 - Capone's Escape Tunnels

Rob Nelson investigates rumors of a secret underground escape route used by the infamous gangster Al Capone. In Washington state, Rob tries to uncover who -- or what -- built a vast landscape of earthen mounds in Washington state.

Feb. 14, 2017, midnight

S1E2 - Mystery of the Serpent Mound

Rob Nelson explores mysterious tunnels beneath Denver's airport and capitol building to investigate rumors of a secret organization operating below. In Ohio, he tries to uncover the ancient secrets of a mound shaped like a serpent.

Feb. 21, 2017, midnight

S1E3 - America's Buried Massacre

Rob Nelson hunts for a legendary mass grave that could expose a dark secret of America's industrial past. High in the mountains, a giant lake is mysteriously disappearing, and Rob uses cutting-edge technology to find out why.

Feb. 28, 2017, midnight

S1E4 - Rocky Mountain Monsters

Rob Nelson examines a set of bizarre markings that suggest a violent clash between prehistoric beasts. In California, he investigates if a strange lake is a home to alien life.

March 7, 2017, midnight

S1E5 - 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.

March 14, 2017, midnight

S1E6 - California's 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.

March 21, 2017, midnight

S1E7 - Secret History of the New World

Rob investigates 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.

March 28, 2017, midnight

S1E8 - American Stonehenge

Rob Nelson investigates 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 rumored escape tunnels.

April 4, 2017, midnight

Network: Science

Episode Runtime: 60 min.

Season Runtime: 960 min.

Released: Feb. 14, 2017

Last Air Date: Dec. 16, 2017, midnight

Status: Ended

Certification: TV-PG / 10+

REFRESH DATA

Updated: 1 week, 6 days ago

Next update: 1 month, 4 weeks from now