Louise Bonì, chief inspector of the Freiburg criminal police, receives a tip from an informant that a man has purchased two pistols from Russian criminals. Concerned, Bonì investigates the matter to prevent a potential violent crime. Soon, she finds the owner of the car that the buyer used to pick up the weapons. However, he has a watertight alibi for that evening. The driver was someone else - Ricky Janisch, a neo-Nazi and member of the far-right Brigade Southwest. Louise Bonì and her team begin to observe Janisch and encounter more intermediaries, all of whom are part of the far-right scene. The deeper they dig, the more alarming the scenario becomes: Are they dealing with an extensive neo-Nazi network that will stop at nothing? And how are they supposed to prevent an attack when their opponent is always one step ahead?.