Valkyrien

Deep underground, below Valkyrien Square in Oslo, doomsday prepper Leif Lien has arranged for doctor Ravn Eikanger to carry out his research in secret. While Ravn is up on the surface burying his wife Vilma, one of Leif's many alarms goes off. A robbery has gone terribly wrong, and the severely injured robber Teo seeks refuge with Leif. Without medical attention, Teo will die. And Ravn owes Leif a favour.

Ravn is clutching at straws, searching for something that can help Vilma. Research was her domain, not his. Against Leif's will, Ravn decides to let Vilma's research colleague Unn, in on the secret. Teo, trapped underground and separated from his heavily pregnant wife Marit, is almost driven out of his mind. He dreams of building a shelter for himself and his family. And Leif is keen to help. This, however, requires serious resources, and so Leif begins to make demands of Ravn and Unn.

The clinic is open and Ravn and Unn begin to make progress with Vilma's treatment. Leif is under scrutiny by police, who suspect he had a hand in the robbery.

A humiliating conversation with his brother forces Leif to reconsider his leadership style. Teo puts both himself and the clinic at risk by seeking out his wife, Marit. A patient gives Ravn an idea that could help Vilma. But before he can give Vilma a new drug, he needs a test subject. Someone expendable.

A patient in the underground clinic seems to suffer from a common influenza, but it turns out to be a highly contageous and deadly bleeding fever. With a potential pandemi in hand Leif panics and scrambles his brother and his fellow preppers, but Unn and Ravn works hard to try to contain the damage.

When Vilma finally wakes up, no one is there. She starts wandering about, leaving the tunnels, and entering the world outside. She is picked up by the police and brought to the hospital, where Ravn finds her, and brings her home. Per finds a way into the secret tunnels, where he confronts Teo and Leif with fatal consequences.

It is not easy to return to society, when you are officially declared dead and buried. So Vilma and Ravn has a lot of explaining to do. Both to Siv, Vilmas family, the police and to the public. Teo has turned himself over to the police and is now in jail. And Leif has a problem with the underground clinic, which is now without doctors. What to do with the patients?

After Leif sabotaged the power system in the city, chaos rules in Oslo. The citizens have no water, no gasoline, no heating and no communication. The hospital runs on emergency supplies, but after three days problems arise. Leif and Unn decides to take some of the patients to the underground clinic, which is still operational.