William Lyon Mackenzie King, Prime Minister of Canada pays a visit to Canadian airmen in England. Good shots of King chatting with Royal Canadian Air Force men, inspecting them. King inspecting Lancaster bomber, doffing his hat and saluting airmen. King examining new gunsight used by RCAF squadrons, excellent shot of King in cockpit of Spitfire, donning flyers helmet, and oxygen mask. Shot of him trying to squeeze out of cockpit, being helped by RCAF pilot (00/00/1943).