Series of shots at Marine Industries shipyard in Tracy, Quebec in winter; shots of drydocked ships under repair, large propellers, workers (1:21). CSs of welders working inside hangar (0:46). CU of blade of vertical machine tool (0:14). CSs of worker hooking steel cables to crane's large hook (0:44). Various shots of vertical machine tool in operation cutting grooves into large circular steel part (1:24). CS of large propeller being craned into hangar, PAN of hangar and various shots of workers (2:29).