Intelligence Unit investigate various crimes, including a murdered s€x offender, a jogger's death, and a warehouse fire, while also dealing with internal conflicts and personal storylines. The Unit facing off against a private security force, struggling with a case involving a church offering sanctuary, and exploring the aftermath of Voight's actions.

The murder of a s€x offender, with the investigation leading the team to a private "special police" force that may be covering up illegal activities. It also involves the examination of the victim's past and the conflict between the Intelligence Unit and the Special Police, who operate outside of the CPD's jurisdiction.