On the Chemin des Dames, the regiment of Vincent Morlas and Joseph Dartigue must head for the front before they will be granted leave. Ready for any challenge, the two friends develop a daring tactic that will lead their regiment to victory.
After a successful assault, the men are celebrating on the terrace of an inn when they hear about soldiers who refused to fight. When they were told that their leave had been cancelled and that they would have to lead another attack that evening, they revolted. Pieces of red cloth bloom from the barrels of rifles. Mutiny is afoot!