B 19 Flying Fortresses leaving on and returning from bombing raid on Brest.
Title reads: "First Stratosphere Road by Flying Fortresses".
Location of events unknown, an RAF base somewhere in England.
Various shots of RAF (Royal Air Force) ground crew artwork cleaning and preparing a American Boeing Flying Fortress (B.19) for flight. Various shots of the aircrew putting on their kit and climbing into a lorry which is to take them to their aircraft. Various C/Us of the crew standing beside the bomber. They are smoking, drinking tea and looking at maps. We also see them putting on their "special oxygen breathing apparatus".
Panning shots of two bombers taking off. Ground crew and a farmer on a tractor wave as the aeroplane takes off. Aerial shots of bombers in flight. Good shots of bombs falling through thin cloud towards fields. Various shots of bombers landing. We see the aircrew getting out of plane and walking across tarmac.
According to narrator the Flying Fortresses' target was Brest (presumably in Belarus).