Lead-up to Vimy Ridge: Various shots of Canadian Battalion building roads in the vicinity of Vimy with picks, shovels and mule-drawn scoops. Various shots of Canadian Railway Troops building a narrow gage railway for bringing supplies to the front. Sequence showing activity at an ammunition dump. PAN of piles of shells. Shots of soldiers loading shells on flat cars, of personnel riding the small cars to the front. TRAVELLING SHOT of battlefield from one of the cars. Shots of small gasoline engines pulling a string of loaded flat cars. Various good shots of Black soldiers from the British West Indies Regiment casually handling live shells, smiling at camera.