Gun camera operations: shots of air force officers Gillam, Peel, Jameson, CS of Jameson. Pilot gets into Spitfire; engine starts and MLS of Spitfire taking off. Various good shots of Spitfires flying all over the sky, passing very close to camera plane. Spitfire planes land, ground crewman retrieves cameras. Single shot of film on rack in laboratory and shots of men in screening room watching gun camera footage. Shots of German planes being hit, boats being strafed, taken by gun camera. Shot of men discussing after the film projection.