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The Best Episodes of Secrets of the Underground

Every episode of Secrets of the Underground ranked from best to worst. Let's dive into the Best Episodes of Secrets of the Underground!

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.
Genres:RealityDocumentary
Network:Science

Best Episodes Summary

"Legend of the Nazi Gold" is the best rated episode of "Secrets of the Underground". It scored 8.1/10 based on 15 votes. Directed by N/A and written by N/A, it aired on 10/28/2017. This episode scored 0.2 points higher than the second highest rated, "Great Lakes Bermuda Triangle".

  • Legend of the Nazi Gold
    8.1/1015 votes
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    #1 - Legend of the Nazi Gold

    Season 2 Episode 1 - Aired 10/28/2017

    A legendary train filled with stolen Nazi gold is said to be hidden in Poland. Using cutting-edge technology, Rob Nelson and Stefan Burns explore deep underneath the earth's surface and in abandoned Nazi tunnels in search for the infamous legend.

    Director: N/A

    Writer: N/A

  • Great Lakes Bermuda Triangle
    7.9/1015 votes
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    #2 - Great Lakes Bermuda Triangle

    Season 1 Episode 5 - Aired 3/14/2017

    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.

    Director: N/A

    Writer: N/A

  • America's Buried Massacre
    7.8/1020 votes
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    #3 - America's Buried Massacre

    Season 1 Episode 3 - Aired 2/28/2017

    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.

    Director: N/A

    Writer: N/A

  • King Solomon's Treasures
    7.8/1014 votes
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    #4 - King Solomon's Treasures

    Season 2 Episode 2 - Aired 11/4/2017

    Priceless gold and silver artifacts are believed to be in fabled lost Temple Treasures of Jerusalem & King Solomon's hidden mines. With unprecedented access, Rob Nelson and Stefan Burns use the latest technology to search for the legendary treasure.

    Director: N/A

    Writer: N/A

  • Rocky Mountain Monsters
    7.6/1017 votes
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    #5 - Rocky Mountain Monsters

    Season 1 Episode 4 - Aired 3/7/2017

    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.

    Director: N/A

    Writer: N/A

  • Capone's Escape Tunnels
    7.5/1016 votes
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    #6 - Capone's Escape Tunnels

    Season 1 Episode 1 - Aired 2/14/2017

    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.

    Director: N/A

    Writer: N/A

  • Secret History of the New World
    7.5/1013 votes
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    #7 - Secret History of the New World

    Season 1 Episode 7 - Aired 3/28/2017

    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.

    Director: N/A

    Writer: N/A

  • Mystery of the Serpent Mound
    7.3/1018 votes
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    #8 - Mystery of the Serpent Mound

    Season 1 Episode 2 - Aired 2/21/2017

    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.

    Director: N/A

    Writer: N/A

  • American Stonehenge
    7.2/1014 votes
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    #9 - American Stonehenge

    Season 1 Episode 8 - Aired 4/4/2017

    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.

    Director: N/A

    Writer: N/A

  • Doomsday Volcano of the Gods
    7.1/1011 votes
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    #10 - Doomsday Volcano of the Gods

    Season 2 Episode 4 - Aired 11/18/2017

    A massive supervolcano beneath Naples, Italy may be on the verge of erupting again, which could have apocalyptic consequences across the planet. Rob Nelson and Stefan Burns use cutting-edge technology to investigate this disturbing new evidence.

    Director: N/A

    Writer: N/A

  • Tesla's Final Secrets
    7.0/1012 votes
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    #11 - Tesla's Final Secrets

    Season 2 Episode 3 - Aired 11/11/2017

    Nikola Tesla died before finishing a mysterious, earth-shattering invention, but the ground beneath his only remaining lab might hold clues. Rob Nelson & Stefan Burns are the first to use cutting-edge tech to investigate Tesla's underground secrets.

    Director: N/A

    Writer: N/A

  • Mystery of the Ice Cave
    7.0/109 votes
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    #12 - Mystery of the Ice Cave

    Season 2 Episode 6 - Aired 12/2/2017

    A strange cave freezes in the summer and melts in the winter, and a massive sand dune swallows a small child in an instant. Rob Nelson and Stefan Burns use cutting-edge technology to investigate these mysteries of the natural world.

    Director: N/A

    Writer: N/A

  • California's Hidden Doomsday
    6.9/1014 votes
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    #13 - California's Hidden Doomsday

    Season 1 Episode 6 - Aired 3/21/2017

    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.

    Director: N/A

    Writer: N/A

  • Atlantis in America
    6.8/109 votes
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    #14 - Atlantis in America

    Season 2 Episode 5 - Aired 11/25/2017

    New theories claim that the legendary sunken city of Atlantis could have actually been in the Americas. Rob Nelson & Stefan Burns use cutting-edge technology to investigate evidence that might shed more light on one of the world's greatest mysteries.

    Director: N/A

    Writer: N/A

  • Quest for the Gold Rush Fortune
    6.4/108 votes
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    #15 - Quest for the Gold Rush Fortune

    Season 2 Episode 8 - Aired 12/16/2017

    Millions of dollars of stolen Gold Rush treasure is rumored to have been stashed in a cave in Northern California. Rob Nelson and Stefan Burns use cutting-edge technology to search for the legendary treasure.

    Director: N/A

    Writer: N/A

  • Lost Pirate City Treasure
    6.2/109 votes
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    #16 - Lost Pirate City Treasure

    Season 2 Episode 7 - Aired 12/9/2017

    When an infamous pirate city sunk into the sea after a massive earthquake, a pirate's treasure might have disappeared with it. Rob Nelson and Stefan Burns use cutting-edge technology to hunt for the legendary lost pirate treasure of Henry Morgan.

    Director: N/A

    Writer: N/A