A battalion of the King's Own Yorkshire Light Infantry in the rear areas of the Western Front, autumn 1917.
A battalion manoeuvre over ploughed fields with dispersed soldiers and mounted officers (filmed in long shot). Men of the battalion rest and smoke wearing field equipment. A Lewis machine gun team gives a demonstration. A second group demonstrates Swedish Drill (PT), a third group bayonet fighting, a fourth the speedy donning of gasmasks and a fifth a solidarity-boosting 'trust exercise'. Two field cookers arrive and stew is served to the men, who eat rather camera-consciously. The whole battalion, led by its band, marches past the camera, rifles at the trail.