MI6 Agent Katrin Nissen is Winston Churchill's last hope to convince his government to let him mine the coast of Norway to prevent Hitler from reaching the iron ore reserves that will fuel the Nazi war machine. The proof Churchill needs is to be found in a beef processing plant in the coastal town of Kolding, Denmark. The strategy is simple. As the army gears up for the invasion, food supplies will move with them, and Churchill will be able to chart their path to the coast as they prepare to invade Norway.

Katrin is dispatched to Kolding to track these supply shipments, but the mission turns deadly when she encounters an SS officer on a mission of his own. As Katrin flees, her escape route leads back to her home in Sankt Peder where the notorious double agent Ronin has allied himself with the Nazis.

As the townspeople organize to resist the imminent occupation, and with time running short, Katrin must enlist the help of her family and the fledgling Danish Resistance to complete her assignment.