Decades after the Second World War, the seabed and beaches around the German island of Wangerooge still hide live munitions, and this film follows the family team tasked with finding them before the tide or a child does. André, Marcel and Patrick Warfsmann sweep the fine sand centimeter by centimeter with metal detectors, marking every signal before carefully excavating by hand to see what they have found. Most hits are scrap, but some are shells, mines, or unexploded bombs left over from decades of naval battles and coastal defenses in the North Sea. Once a find is confirmed as wartime ordnance, the Explosive Ordnance Disposal Service takes over, running a salvage operation that can shut down stretches of beach for hours. The film stays close to the physical work: the slow crawl across sand, the tension of not knowing what is under the next signal, and the routine but high-stakes handling of decades-old explosives that never went away.