1945年1月，法国第一伞兵团与美国部队一起在法国解放阿尔萨斯。一支盟军小部队必须坚守热不桑村，实际上再过几天，就是著名的"阿尔萨斯斯大林格勒战役"。他们必须在寒冷、大雪和严酷的冬季条件下捣烂德国军队，法国和美国士兵必须学习在战争的地狱里生存，他们将面对和意想不到的敌人。

　　During the Second World War, following an ambush carried out in a fort by German troops, Eugène, an Allied soldier, finds himself trapped underground. Now fighting for his survival, his destiny will play out alongside that of another survivor. Both will try to find the resources to extricate themselves from certain death. They are unaware that terrible battles await them outside.