Summary: Instructional film to encourage seamen to join the Submarine Detection Service, using actors in main roles, but genuine training situations.
Description: (Reel 1) Basic training at HMS Collingwood shore station at Fareham: flag ceremony, mess scenes, knots, gym, bayonet practice. Two ABs are persuaded of the worth of submarine detection. Talk of valuable work done by converted trawlers with fishermen crews. SD training at HMS Nimrod (the anti-submarine shool in Campbelltown, Scotland). "Mass procedure house" - training on asdic, mechanics of asdic. (Reel 2) "Rôle playing" - SD practice. Practical exercise at sea, using a real submarine. Relaxation - mixed hockey, dances. Graduation, posted to ship, action sequence, submarine is detected and hit. (Reel 3) On shore, in pub, two ABs hear how rationing is less severe, thanks to convoys getting through. The civilian must not grumble. The sailors cannot, of course, give any details for security reasons, but they are satisfied to be doing a good job.
