During an operation against enemy machine-gun nests west of Varennes, Cpl. Call was in a tank with an officer when half of the turret was knocked off by a direct artillery hit. Choked by gas from the high- explosive shell, he left the tank and took cover in a shellhole 30 yards away. Seeing that the officer did not follow, and thinking that he might be alive, Cpl. Call returned to the tank under intense machine-gun and shell fire and carried the officer over a mile under machine-gun and sniper fire to safety.