After another long day of charging, Blutch and Chesterfield make the acquaintance of Matthew Brady, a professional photographer dispatched by President Lincoln to document the ongoing historic struggle. Photography, still a new invention, together with Brady's talent for capturing the moment, are met with great enthusiasm by both the rank and file and the top brass. Inevitably, it s not long before Blutch and Chesterfield are ordered to act as the artist's protective detail - much to the sergeant's disgust...