During the German occupation of the Second World War, François, Eusèbe, and Lisa, three brave children, embark on a secret adventure: resisting the Nazis in the heart of France.

While many adults surrender to the climate of fear imposed by the occupiers, the three youngsters form a small underground Resistance cell. Armed only with their courage, intelligence, and extraordinary determination, they carry out acts of sabotage that awaken the conscience of their entire community, even inspiring their own parents to take action. Veteran actor Gérard Jugnot reunites with Barratier more than 20 years after their first collaboration on Les Choristes.3