In this wartime melodrama, Lieutenant Colonel Raspeguy (Anthony Quinn) is a French peasant who has worked his way up the military ladder during the French involvement in Indochina. Sent to Algeria, Raspeguy must mold a group of raw recruits into a competent fighting unit. He calls on Esclavier (Alain Delon), his sensitive assistant who eventually deserts the military out of frustration over the pointlessness of war. Raspeguy's other assistant is Boisfeuras (Maurice Ronet), the affable officer whose outside demeanor hides the heart of a vicious killer who loves the bloodlust of battle. Raspeguy takes up with Countess De Clairefons (Michele Morgan), the widow of a respected general. She promises Raspeguy she will marry him if he comes back from the conflict as a general.