After a charge, Blutch and Chesterfield begin to have a lively discussion when, suddenly, Blutch's horse and then the sergeant himself are blown by explosions of shells. After finding his horse safe and sound, Blutch finds Chesterfield in a ridiculous posture ready to be photographed by an equally strange man. After some rough presentations and the intervention of the general, the two heroes will be in charge of protecting the photographer, Matthew B. Brady, and taking him wherever he wishes. In short, action and trouble in perspective for the two partners.