Ragna is a courageous cop who infiltrates a nationalistic subculture following a killing in Norway. Ragna's journey pulls her into a spiral of hatred and reveals a terrorist plot aimed at the heart of Europe.

In 2037, Norway decides to seal itself off inside a wall, creating a self-sufficient Nordic paradise for the population. But when a contagious disease engulfs the country, the very wall built to keep the citizens safe ends up entrapping them.