Episodes airing soon

  • Bergkristal: The Atomic Threat

    A secret weapons program in the heart of Austria that could have ended badly for the Allies - and may have indicated nuclear plans being concocted by Hitler.

  • The Sum of All Fears

    Guided missiles, the Wasserfall, and the war-changing V2 were dreamed up and tested in Peenemunde, a German seaside city suddenly overtaken by Nazi elite.

  • Lurking in the Shadows

    Germany's preparations for WW2 began years before 1939. Under various guises, Germany began work on what would become their most technologically advanced front.

  • Hitler's Secret Underground City

    In Poland lies a forgotten Nazi complex which could have sheltered up to 27,244 people from Allied bombs, the purpose of which largely remains a mystery.

  • Hitler's Secret Underground City

    In Poland lies a forgotten Nazi complex which could have sheltered up to 27,244 people from Allied bombs, the purpose of which largely remains a mystery.

  • The Secrets of Nazi Future Tech

    Hidden in a remote mountainous forest is a structure nicknamed the Fly Trap or Hitler's Stonehenge. Researchers still have no definitive idea what it is.

  • The Secrets of Nazi Future Tech

    Hidden in a remote mountainous forest is a structure nicknamed the Fly Trap or Hitler's Stonehenge. Researchers still have no definitive idea what it is.

  • Fuelling Evil

    Outside the town of Pölitz lie the ruins of what was once one of Germany's most important assets - a place that kept the German war machine moving.

  • Fuelling Evil

    Outside the town of Pölitz lie the ruins of what was once one of Germany's most important assets - a place that kept the German war machine moving.

  • Secrets of Hitler's Castle

    When the Nazis took Ksiaz Castle, it wasn't for the view. Secret staircases and lifts were built, while underneath, a vast network of tunnels was taking form.

Episode guide

Secret Nazi Bases

Series 1

Secret Nazi Bases

  • Guernsey: Hitler's Island Madness

    Uncovering hidden structures built by the Nazis. The first edition focuses on Guernsey, which Hitler occupied and fortified over the course of five years.

    Not scheduled
    Not scheduled
  • Maisy Batteries: A D-Day Coverup?

    A mile-and-a half of recently-excavated trenches, bunkers, barracks, and gun encasements near Pointe du Hoc, which tell a new story of D-Day.

    Not scheduled
    Not scheduled
  • Villa Winter: Secret U-Boat Base?

    The Spanish island of Villa Winter, which was suspected of being a port for German U-boats and part of a larger plan to invade the United States.

    Not scheduled
    Not scheduled
  • Kraftwerk Nord West

    One of the largest Nazi bunkers ever constructed, outside the French town of Watten, a missile facility with storage for 108 missiles and two launch pads.

    Not scheduled
    Not scheduled
  • Dag Bromberg: A City in the Forest

    As the Red Army approached a forest in Poland toward the end of the war, they stumbled upon a complex containing more than 1,000 structures across 25sqkm.

    Not scheduled
    Not scheduled
  • Bergkristal: The Atomic Threat

    A secret weapons program in the heart of Austria that could have ended badly for the Allies - and may have indicated nuclear plans being concocted by Hitler.

Secret Nazi Bases

Series 2

Secret Nazi Bases

  • Lurking in the Shadows

    Germany's preparations for WW2 began years before 1939. Under various guises, Germany began work on what would become their most technologically advanced front.

  • The Sum of All Fears

    Guided missiles, the Wasserfall, and the war-changing V2 were dreamed up and tested in Peenemunde, a German seaside city suddenly overtaken by Nazi elite.

  • Hitler's Secret Underground City

    In Poland lies a forgotten Nazi complex which could have sheltered up to 27,244 people from Allied bombs, the purpose of which largely remains a mystery.

  • Fuelling Evil

    Outside the town of Pölitz lie the ruins of what was once one of Germany's most important assets - a place that kept the German war machine moving.

  • The Future of Evil

    Built in 1934, Ordensburg Vogelsang, a virtual Nazi Castle was constructed with the intention of building the New German; elite future leaders of the Reich.

    Not scheduled
    Not scheduled
  • Himmler's Occult Castle

    In 1933, Heinrich Himmler signed a 100-year lease for Wewelsburg castle in Büren, Germany. The space became a clandestine training space for the SS.

    Not scheduled
    Not scheduled
  • The Secrets of Nazi Future Tech

    Hidden in a remote mountainous forest is a structure nicknamed the Fly Trap or Hitler's Stonehenge. Researchers still have no definitive idea what it is.

  • Secrets of Hitler's Castle

    When the Nazis took Ksiaz Castle, it wasn't for the view. Secret staircases and lifts were built, while underneath, a vast network of tunnels was taking form.