The action takes place in a small grocery store on rue des Thermes, where a robber is holding customers hostage. The teenager, who is in the room with his mother, manages to snatch the gun from the robber. And a minute later a shot is heard. The criminal receives a bullet in the back, which means that the authorities will not count the shot as self-defense. And at that moment, when it would seem that the visitors have nothing to fear anymore, the boy’s mother takes up arms and orders everyone to remain in their places.