District 21 of the Chicago Police Department is made up of two distinctly different groups. There are the uniformed cops who patrol the beat and go head to head with the city's street crimes. And there's the Intelligence Unit, the team that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond. These are their stories.
Follows the lives of the personnel of the fictional 21st District, which houses both uniformed officers and the department's elite Intelligence Unit as they fight every day to keep the city of Chicago, Illinois safe.
