In brief: In the wake of the Second World War, the Danish authorities force thousands of German prisoners of war to defuse the millions of mines buried on Danish beaches. In 1945, in Denmark, after the defeat of Germany, the tough veteran Sergeant Carl Rasmussen is assigned by Lieutenant Ebbe Jensen to defuse and remove 2.2 million mines in the Danish West Coast to make the beaches safe. Carl receives a group of teenage Germans prisoners of war to clear mines. With the formal promise of Ebbe, Carl tells the youngsters that when the task is accomplished, the survivors would be released to return to Germany. After the initial hostility with the enemy, Carl realizes that the POWs are too young and befriends the boys. But when a mine in a clear area blows up his dog, Carl forces the boys to walk together on the safe areas to check whether any mine was left behind. Months later, the survivors complete their task but Ebbe sends them to another mined field. What will Carl do?