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All Seasons

Season 1

  • S01E01 Conspiracy on Death Island

    • September 4, 2019
    • Science Channel

    A strange, abandoned mansion on a remote island is central to countless conspiracy theories, and new discoveries reveal if this eerie site was a secret Nazi base intended for a sinister mission.

  • S01E02 The Doomsday Castle

    • September 11, 2019
    • Science Channel

    An abandoned eerie structure in France could have doomed the Allies in World War II, and new discoveries at this mysterious site reveal the truth behind top-secret Nazi plans to unleash apocalyptic destruction.

  • S01E03 The Devil's Lair

    • September 18, 2019
    • Science Channel

    When a top-secret Nazi base is discovered in France decades after the war ends, experts use cutting-edge tech to reveal the secrets of this deadly compound.

  • S01E04 Hitler's Forbidden Island

    • September 25, 2019
    • Science Channel

    New discoveries on a fortified island reveal the terrifying truth behind Hitler's secret plan to win World War II at all costs. Using the latest science and tech, experts investigate what really happened on this mysterious island.

  • S01E05 Mystery of the Nazi Nukes

    • October 2, 2019
    • Science Channel

    Experts dig into the dirty details of a bunker and network of tunnels discovered in the heart of Austria. The government says the radiation in the hills is natural but the evidence says otherwise.

  • S01E06 Hitler's Invisible City

    • October 9, 2019
    • Science Channel

    As the Soviet Army pushes the Nazis out of Poland, they discover a massive city of over a thousand buildings that was unknown to the Allies, and using the latest science, experts reveal how Hitler was able to keep this sinister place hidden for so long.

Season 2

  • S02E01 Inside the Terror Factory

    • July 24, 2021
    • Science Channel

    The ruins of a once sprawling Nazi industrial complex along the Baltic coast contains a terrifying and mysterious past; using the latest science, experts investigate and unearth a cataclysmic, top secret technology developed by German military engineers.

  • S02E02 Underground Superweapons

    • July 31, 2021
    • Science Channel

    A labyrinth of tunnels carved deep in the Polish mountains leads to the largest underground Nazi weapons development complex ever discovered; using the latest science, experts investigate reports of a top secret Nazi supertechnology with ominous goals.

  • S02E03 Secrets of Vogelsang Castle

    • August 7, 2021
    • Science Channel

    A medieval castle-like complex in the remote mountains of Germany contains dark secrets to the Nazi's plan for world domination; experts investigate and uncover a nefarious training facility designed to groom elite Nazi personnel.

  • S02E04 Secret Nazi City

    • August 14, 2021
    • Science Channel

    As the Nazis embarked on their dominate rise to power, a massive construction project secretly began across Eastern Germany; using the latest tech, experts uncover an elaborate network of underground tunnels and bunkers with frightening ambitions.

  • S02E05 Mystery Beneath the Castle

    • August 21, 2021
    • Science Channel

    In 1941, German forces seize an enormous Renaissance castle and begin to make mysterious renovations; experts investigate and reveal an underground tunneling project below the opulent structure and a secret construction project with dark motives.

  • S02E06 Secrets of the Owl Mountains

    • August 28, 2021
    • Science Channel

    Deep in the Owl Mountains of Poland, a construction project on an enormous scale is secretly undertaken by the Nazis; experts investigate and uncover a mysteriously abandoned underground complex that may have been concealing something profoundly dark.

  • S02E07 Secret Relics of Nazi Research

    • September 4, 2021
    • Science Channel

    The skeletal remains of strange structures are clues to a mysterious research installation secretly built by the Nazis in Western Poland; experts investigate and uncover top-secret military fuel development with a catastrophic purpose.

  • S02E08 Curse of Himmler's Castle

    • September 11, 2021
    • Science Channel

    As the Nazis plot the beginning of their empire, Heinrich Himmler transforms the ruins of a German castle into a mysterious Nazi complex; experts investigate and reveal the structure was not intended for military defense, but served a much darker design.