This is the story of the methods used to defeat Hitler's V1 (doodlebug) and V2 (rocket) "revenge weapons" towards the end of the second world war. Even though the Nazis were in retreat these weapons could have turned their defeat into victory. The film includes references to Hannah Reich, who in real life was a German test pilot.

The tactics of a German fighter pilot offend his aristocratic comrades but win him his country's most honored medal, the Blue Max. The General finds him useful as a hero even though his wife also finds him useful as a love object. In the end the General arranges for him to test-fly an untried fighter.