Aided by corrupt civil defense man Leif, Physician Ravn opens an illegal clinic for off-the-grid patients deep below a disused station in Oslo to finance his research into a cure for his dying wife.
Against Leif's wishes, Ravn decides to inform Vilma's colleague Unn about their secret. Trapped underground and separated from his pregnant wife Marit, injured robber Teo is driven to distraction.
Ravn and Unn treat the patients Leif provides as best they can and begin to make progress with Vilma's treatment, but Vilma's daughter Siv has started asking questions. Leif is under police scrutiny.
Leif is forced to reconsider his leadership style. Teo puts both himself and the clinic at risk by seeking out Marit. A patient gives Ravn an idea that could help Vilma, but he needs a test subject.
