In the early morning of April 9, 1940, the Danish army is alerted: the Germans have crossed the border.
A Danish officer, Michael, is sent away to the International Security Assistance Force operation in Afghanistan for three months. His first mission there is to find a young radar technician who had been separated from his squad some days earlier. While on the search, his helicopter is shot down and he is taken as a prisoner of war, but is reported dead to the family.
Karlskov is a self made, successful owner of a large electronics factory, has a wife and five children. They live the good, privileged upper-class life on Strandvejen north of Copenhagen when the Nazis occupy Denmark in April 1940. Karl struggles to continue production at the factory, but to protect his family and employees he reluctantly begins to produce for the German market. It brings him into a controversial collaboration with the occupying power and causes painful breaks in the family.
