Viking Johansson

A group of young robbers, specializing in robbing shopping center security guards, are raging through out Gothenburg. A robbery goes awry when an innocent passerby is killed. Ricky, the gang's young leader, tries to quickly find an expert who can clean the money of the dye pack that exploded while Johan Falk, and his colleagues at GSI, accelerate their hunt.

Falk is blackmailed into smuggling a truckload of guns from Latvia.

Five men break into Frank Wagner's apartment. Frank is able to escape and seeks out the help of Johan Falk. Has someone leaked that Frank is working with the police? Frank and John don't know who knows what and whom to trust.

The unknown, large mafia organization is now showing its true face. The pressure that GSI and John Falk and his family have put on the organization, makes them fight back on all fronts. The rule book is thrown out. But to go after Johan Falk's family and trying to kill his wife could be the biggest mistake the organization has ever made. GSI closes up around Johan's family and the final battle begins ...

It's been two years since John Falk and Frank Wagner broke their cooperation and Frank started working undercover with the police. Frank's search for Kevin crosses Johan's investigation and opens up a new collaboration between them - with the big difference that this time it's personal for Frank.

Johan Falk's stepdaughter Nina has gotten in contact with her biological father, Orjan, discovering that he is in debt to an Estonian construction company in Gothenburg, leading to Nina's kidnapping.

When Johan Falk was 19 years old he lost his girlfriend Maria and their unborn child when Maria got hit by a car. Falk takes the accident very hard and do not even go to the funeral. He decides that crime must be fought and applies immediately to the Police Academy. The movies are, however, only about Falk as an police officer with many years of experience from the National Task Force. He often goes his own way and does not shy away from using controversial methods. This leads to that the colleagues often experience difficulties in cooperating with him and managers are forced to turn a blind eye to what he's doing.