A United States Army training film about defense against chemical warfare. United States troops wearing gas masks undergo training with gas masks in the United States. They fire artillery. An officer wears a diaphragm gas mask which enables his command to be heard by the gun crew. A divisional chemical officer makes an inspection of the training for the division commander. He gives last minute advice to an assembled group of officers. Troops wearing gas masks undergo a drill on a field. U.S. troops are deployed to France and are seen marching toward front line positions during World War I. The Germans launch a cloud attack of poisonous gas. The troops lay down in the field with rifles in their hands. Soldiers rest covering themselves with a large sheet.
United States soldiers fire shells at German Headquarters in Sultzeren, France during World War I. American soldiers in position at Gerardmer, Vosges Mountains, Alsace. The soldiers load and fire artillery. Explosions at the German Headquarters.
United States soldiers in France during World War I. The soldiers write letters while sitting in trenches. A rifle in the background. A group of soldiers plays game of craps on a table in the trench.
Wounded United States soldiers being taken on horse carts in France during World War I. A soldier comes out of a hide out in a town. A Red Cross board on a wall. Wounded soldiers being taken on horse carts. The soldiers and horses are wearing gas masks. The wounded soldiers are also given gas masks.
American soldiers scurry up a hill after setting gas charges at its base. Next, they are seen ready to remotely set off the charges. They do so, pressing the plungers on their detonators, sumultaneously. The charges explode at the base ot the hill and send huge white clouds of gas billowing over the hill. American soldiers on a hillside overlooking a rural area of France, fire a battery of mortars. Next, the shells are seen striking and exploding in the distance, where they create a virtual wall of gas smoke. Other shells explode, raising black smoke in the midst of the gas. In final scene, several soldiers walk cautiously, widely separated from each other, across a field of flowers, toward the retreating gas cloud, against which they are silhouetted
Wounded United States soldiers in France during World War I. The soldiers load and fire gas shells. Smoke rises from the shells along a hillside. Fields in the foreground. Smoke spreads in the surrounding area. A group of soldiers advances on a field and goes towards a forest area.