Frank Wagner goes deeper undercover to infiltrate Europe's most dangerous Mafia, the Russian-est, consisting of ex - KGB officers.

A car explodes in front of a primary school where GSI boss Patrick Agrell has just left his children. The event reunites Johan Falk with Leo Gaut, a former criminal restaurant owner who Johan put behind bars a decade ago.

Johan works in tandem with the GSI organized crime unit to bring in a cadre of armored car robbers

John Falk is on a routine mission with the Gothenburg police special unit GSI. With the help of a Norwegian undercover police and a civilian infiltrator in one of Gothenburg's heaviest criminal gangs, the GSI are trying buy six assault rifles and thus get them off the street. But suddenly everything changes when a new unknown player suddenly and immediately wants to buy not only those weapons but even more, including armor-piercing shells. GSI realizes that this can not be any ordinary robbers. Someone will start a war on the streets of Gothenburg. At the same time as the situation gets more and more complicated for John Falk's infiltrator Frank Wagner when the leader of the gang he infiltrated realize that one of his own leaking to the police.

Johan Falk and his colleagues at the GSI go after sex traffickers importing young women from the East and forcing them into prostitution.

Johan is a two-fisted Gothenburg cop who finds himself in a shoot-out with jewel robbers. After the smoke has cleared, one robber, shot by his accomplice, and an innocent bystander, are dead. Three witnesses, including Helen, identify thug extraordinaire Leo Gaut as being the dead crook's trigger-happy colleague. Gaut soon threatens the three witnesses, and only Johan, the badge-wearing hero, can save them.

After suffering a traumatic incident, Molly moves into a new apartment to begin her path to recovery, but it’s not long after her arrival that a series of persistent knocks and screams begin to wake her up at night.

After a couple of chance encounters the nightly meetings with Juli become the most important thing in Juan's life. God willing, fantasy can become reality.

A film crew is assembled to recreate a scene form a Swedish movie classic. The director analyzes the camera angles and the lighting, while chatting about the actor's work and their costumes with the members of the crew. As the set is being completed, a film within the film slowly develops, and all the false starts and phony lines start to take on a life of their own. Is this a documentary, a copy, or simply a unique adventure?

Valle's birthday threatens to be a washout: His mother is on a research trip, and all he gets is an old, dusty bicycle. But Biciklo is not just any old bike. It has magical powers and rides by itself. One day, shady businessmen come to the small town. They want to snatch the residents' houses and lure them with fraudulent offers. Valle and his girlfriend Jasmina do everything to save their home. But the criminals don't like that at all.

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.

Minoo returns to her family in Sweden to attend her sister Gita's wedding. Her mother and father believe that she has disgraced the family having worked as a stripper.

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.

GSI second in command, Sophie Nordh, flips gangster leader Seth Rydell and convinces him to infiltrate a rogue military group. For the first time GSI Chief Patrick Agrell realizes that he is using a ruthless psychopath as an infiltrator. Can Seth be trusted or does he have his own agenda?

It's a beautiful day in Slottsskogen, Gothenburg idyllic city park, when suddenly the unthinkable happens - gunfire amidst all people. Two gangsters shooting game against each other and a large police operation starts. The conflict grows rapidly to involve several gangs from Gothenburg underworld. GSI switched to try to identify a new thread which proves to be both larger and better armed than any other. The only clue is a tattoo on one of the killed gang members.

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.

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.

To cope with major life changes, three older pals take a cruise, where a former lover on board puts stress on the trio's friendship.

The successful detective writer, Erica Falck, is thinking that her next book should be based on a true mysterious event from her childhood. When she was only 13 years old one of her dear friends and classmate Peter boarded a bus and then disappeared. Erica has been unable to let go of the tragic event and her first meeting with a real mystery. As she starts digging deeper into what really happened to Peter it seems as if she has awakened a sleeping beast. When Erica's only connection to Peter, his brother Ivan, who is on his way to see her, gets stabbed and murdered her mission becomes not only to solve the mystery about Peter but also to find out who killed Ivan. During a high school reunion party the heat builds up when Tina, Peter and Ivan's enigmatic sister, unexpectedly shows up and later at the party another murder is committed that leads Erica closer to the truth about what actually happened to the missing Peter.

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

When Johan and his colleagues are watching Seth and his gang member Jack, they stumble on a larger case than they expected. Seth is selling arms to terrorists, but without Jack's knowledge, in a car where Johan's old colleague Pernilla mysterious appears. While Johan begin researching what Pernilla and SÄPO is doing, Jack suspects that everything is not right with Seth and that he's working with the police.

The police station is locked down. A snitch is compromised. Drastic and unexpected events take place. Both inside and outside the police station.

GSI follow up a weapon trail that leads right into Kavkaz mafia headquarters on the west coast. GSI member Niklas Saxlid is the one in the group who is specialized in undercover operations, and he has penetrated Kavkaz' activities. But suddenly something happens and Niklas disappears.

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 ...