Shortly before the start of WW2, renown British big-game hunter Thorndike vacationing in Bavaria has Hitler in his gun sight. He is captured, beaten, left for dead, and escapes back to London where he is hounded by Nazi agents and aided by a young woman.

The Obersalzberg was an ordinary Bavarian mountain until Adolf Hitler discovered it in 1923. There at the Berghof, the Nazi leader spent his time surrounded by his most faithful lieutenants and his mistress, Eva Braun. Though mostly destroyed, remnants of the vast building complex still exist.