Two childhood friends decide to try one last heist — to rob millions from Sweden's safest cash depot. But the police are already on their heels.

Police investigator Irene Huss lives in Gothenburg, Sweden, and tries to balance between murder investigations and family life.

Olle Hulten wakes up drunk on the ferry between Sandefjord and Strömstad. In his car is a gun and a lot of money. Simultaneously the police is chasing a robber whom have hijacked a car and is holding the security guard at gunpoint.

As the Swedish town of Kiruna sinks, Frigga finds herself torn between her family and her job as security chief at the world's largest underground mine.