Don Camillo is exiled by Peppone, the communist mayor of a small mountain town named Brescello. But the mayor has problems with the citizens of the town, who want Camillo back as parish priest. In addition, a flood threatens to destroy Brescello and its environs. So Peppone calls back the priest, and he tries to raise the money needed to prevent damage from the imminent flood. However, delays occur and the flood devastates the area.