Canada produces more shells: brief shot of flash during night barrage. Cut to artilleryman aiming field gun. Several LSs of explosions. LS of heavy artillery piece firing and cut to explosion. FOLLOW AIR TO AIR SHOT of Boston bomber dropping load of bombs and cut to ground shot of multiple explosions. Interior shots of shell factory, work force consisting almost exclusively of women. Cut to man spray painting shells. Exterior shot and TILT UP to sign, of employment office, women entering. Interior shot of many women being interviewed for war work. HAS, level shots of women arriving at work. Various shots of shell production.