 Dandieu decides to kill as many Germans as possible to avenge his family.He takes an old shotgun he used as a child while hunting with his father and sabotages the chateau's bridge before he starts to kill them one by one, taking advantage of his knowledge of the secret passages within the chateau.Trapped inside the castle, the Germans begin to think they are surrounded by many partisans and do not realise that he is, in fact, the only one.