Allied forces increase their air raids in Europe.
Full title reads: "THE GREAT AIR ASSAULT ON EUROPE".
Ground to air shots of formation of B 26 bombers. Various shots of the 8th USA Air Force planes flying over Northern France. They drop bombs and also receive some flak from German batteries around Boulogne.
Several shots of girls spotters at work in operations room back in London.
Various shots of more aerial bombing. They are bombing a forest in Northern France where a particularly important target is hidden - says voiceover.
(Mute & Track Negs.)