British film of Portuguese Field and Heavy Artillery men learning about their guns and limbers, probably France, summer 1918.
The film opens with an unrelated shot of troops digging a trench line. It continues as Portuguese mule-drawn field gun limbers come down a steep grassy bank towards the camera. They turn and wheel on the grassy plain below. Outriders and officers on horseback lead the mule teams back up the bank at the gallop, and over a deep stream which is surrounded by foliage. A posed group of mounted Portuguese officers with a British liaison officer. Nearer the front, a Portuguese guncrew marches up a light railway track. The men break formation on reaching a 9.2-inch howitzer concealed under scrim netting, and proceed to load and fire it twice. A posed group of the gunners with a British guncrew - one of the soldiers offers a plate of food to another. The gunners pull camouflage matting over the shells for the gun. Nearby three British gunner officers stand in conversation with each other.