Hoping to rally the Third Reich to a glorious victory even as Germany suffered massive destruction at the hands of the Allies, Nazi leaders authorized the construction of an elaborate series of underground tunnels, where new weaponry and ammunition would be produced safe from aerial attack. This compelling documentary reveals the incredible plot using rare film footage and fascinating interviews. 104 min. Standard; Soundtrack: English and German; Subtitles: English; biography; trailers. In English and German with English subtitles.