Former SOBR commander Sergei Severov, nicknamed Raven, continues his mission of “people's avenger”, eradicating crime in St. Petersburg. The object of his special attention is a murderer with a medical diploma, as well as brothers from a new criminal group, acting with such cruelty that it makes the heart skip a beat even among seasoned St. Petersburg riot police. All these events take place at the very moment when a grandiose bloody battle for the St. Petersburg drug market begins to flare up. The intelligence services, political circles, individual crime bosses, and large crime syndicates were drawn into the fierce battle.