A young rånarliga who has specialized in robbing security guards in shopping centers raging in Gothenburg. Police call league Nude robbers because they force the guards to strip off her clothes before they disappear with value bags. A robbery goes awry when an innocent passerby killed while color ampoules in bags have time to deploy. Now, mugs league's young leader Ricky (Tom Ljungman) quickly get money laundered from the blue color, which a few experts in the country is capable of, before he pays the person who sold the raw concept to him. Johan Falk (Jakob Eklund) and his colleagues at GSI turn up the tempo of their hunt and contact their informants to try to find out who committed robberies and who is the mastermind behind everything. While running Frank Wagner (Joel Kinnaman) in Gothenburg to meet his old gang - with Seth Rydell (Jens Hultén) and Felix Rydell (Anastasios Soulis) in the lead