A citizen eager to get involved shares the daily lives of four very different mayors to get an idea of what he would have to deal with if he were elected. In Bry-sur-Marne, Charles Aslangul defends a Republic that he sees faltering in the face of insecurity. In Besançon, Anne Vignot must deal with the increasing precariousness of her fellow citizens. In Saint-Brévin, Dorothée Pacaud takes up the torch of a mayor whose house was burned down for supporting the opening of a refugee reception center. Further away, in the Tarn region, Alain Malignon is struggling to revitalize his declining village.