In the days following the surrender of Germany in May 1945, a group of young German prisoners of war were handed over to the Danish authorities and subsequently sent out to the West Coast, where they were ordered to remove the more than two million mines that the Germans had placed in the sand along the coast. With their bare hands, crawling around in the sand, the boys were forced to perform the dangerous work under the leadership of the Danish sergeant, Carl Leopold Rasmussen.

All of a sudden, 16-year-old Martha vanishes. Her father Lothar, who for years has had no contact with her or his ex-wife, sets off unwilling to find her. He soon realises other young people are also vanishing from the city inexplicably. Lothar follows their trail across the country. He meets the occasional young person but the trail goes cold. In the next city he encounters militia groups and a reinforced police presence. Children are forbidden to be on the streets unless accompanied by adults. The world has changed…