CUs of old fashion clock at 2h45, of people passing in front of camera and sign pointing to exit. MS of American van with war poster on it driving out of plant, speeding down street away from the camera. MS of school entrance, school children hurrying out under supervision of teachers during air raid drill. CU of hand switching on and off air raid siren. Interior shots of military men and civilians studying civil defence map, of firemen examining fire axes, of women at small switchboard, typing in an office, filing cards. PAN past air raid wardens at table, white helmets prominently displayed. LAS of siren spinning. Rear and side shots of navy officers on parade ground in front of building, men marching during ceremony. Shots of harbour, stern of mine layer in foreground showing mines ready to be dropped, of harbour with dockside crane at left, building under construction at right. Shots of army trucks aboard cargo ship. MCS of Red Cross nurse posing. HAS of emergency hospital in hangar. LAMCS of men and women running down flight of stairs.