Secret Nazi Bases - Season 1 (2019)

One of the largest bunkers ever constructed, the Blockhaus is built under immense secrecy, utilizing unimaginable engineering feats, and is a potential game changer for Hitler at the tipping point in the war.

A secret weapons program that could have ended badly for the allies. In the heart of Austria, a bunker and network of tunnels were discovered based on a long lost 1944 German report that indicated what the Nazis were up to.

As the Red Army approaches a forest in Poland at the end of the war, they stumble upon a massive complex containing over a thousand structures across 25 sq km. How did the Germans keep this colossal base secret from allied intelligence?