The Chicago Code follows the story of detective Derek Visoki, who has gained a reputation as one of the most ruthless law enforcement officers in all of Chicago. Derek poses a threat to all members of the city's criminal underworld. He is determined to rid his city and its innocent residents of violence and corruption, often resorting to methods that are not entirely legal but prove to be effective. Alongside his new partner, Caleb Evers, Visoki tracks down dangerous thugs.