Bénédicte Meursault, a female firefighter, has just been transferred to a small fire brigade in the South of France. She is welcomed by Philippe, 45, the wise captain of the brigade. Soon after being introduced to the men, the young woman jumps into action. Unfortunately, while rescuing the victims of a terrible car crash, she does not find one of the injured who was ejected thirty meters away. Now the man is in hospital in a coma and he may die because of her. Completely upset, Bénédicte decides to resign but Philippe dissuades her from doing it.

January 1945. The first French regiment of paratroopers to fight with an American unit to liberate Alsace in France. An Allied Division must take the forest bordering the town of Jebsheim, several days before the attack that would later be called the 'French Stalingrad.' Prisoners of the cold, snow, and harsh winter conditions, and pounded by German forces, the French and American soldiers learn the violence and hell of war In this struggle for freedom and survival, they will face and unexpected enemy.