José Pereira heads the police's Organized Crime and Gang Section in Raby, a southern suburb of Stockholm. Here, juvenile gang crime is a rapidly growing and all-too-real problem. Blood brothers Leon and Gabriel have spent their young lives establishing a formidable criminal enterprise - known as the Raby Warriors - which is now poised to secure domination in the area. DCI Ewert Grens is investigating a recent prison break from a maximum-security facility: an incident that is linked to the Raby Warriors - a group Grens knows more about than he first admits. All four men are on a collision course: heading toward an explosive convergence, and a revelation powerful enough to tear each of them apart.