British infantry digging trenches behind smoke screen.
Location Unknown / Unclear.
British infantry digging trenches behind smoke screen. Men burning smoke canisters. More shots of soldiers digging trenches. Smoke surging from canisters. Several shots of a man filming the troops as they dig in front of a house. More smoke canisters with smoke surging out. Close up shot of a sigh reading 'Smoke Control' on a van. Three soldiers walking towards it. Several shots of British officers talking. Explosions in countryside. More shots of the smoke surging across field and men digging trenches.