It is June 1941, and the low point of the war.  England throws wave after wave of RAF bombers across the Channel, but somehow the Lufwaffe is abe to shoot them down at will.  The skies - indeed, the war itself- seem to belong to Hitler. 
But on a small Danish island across the North Sea, Harald Olufsen, a bright eighteen-year old with a talen for engineering, stubles upon a secret German installation.  Its machinery is like nothing he has ever seen before, and he knows he must tell someone - if he can only figure out who...