RCAF train busters: shot of Sergeant-Lieutenant L Blake Wood of Toronto giving final instructions to Flying Officer DM "Bitsy" Grant of Calgary and Flying Officer JA Morton - Mustang fighter in background. Sequence on two men emplaning, propellors turning, planes moving ahead. GROUND TO AIR shot of planes flying by. FOLLOW SHOT AERIAL SHOT of plane flying low, plane passing camera plane. AERIAL SHOT of trains. CU profile of pilot with his hand on the trigger, guns under the wings firing. Shots taken from camera mounted on the gun showing a train being fired at repeatedly, intercut with shots of the plane flying overhead, a lateral view of the pilots hand on the trigger, and firing guns. CUs of pilot getting out of plane at the base, removing his facemask and chatting with another pilot.