A riveting police drama about the men and women of the Chicago Police Department's District 21 who put it all on the line to serve and protect their community. District 21 is made up of two distinctly different groups: the uniformed cops who patrol the beat and go head-to-head with the city's street crimes and the Intelligence Unit that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond.
Sam Swift, the former star of a hit cop series whose epic breakdown is broadcast to the public and sends her to rehab. Desperate to restart her career, she talks her way into shadowing lone-wolf private investigator Eddie Valetik as research for a potential comeback role. Though Eddie resents the babysitting gig, high-spirited Sam uses the skills she learned as an actor playing a cop and proves herself to be surprisingly valuable.
The New York office of the FBI brings to bear all their talents, intellect and technical expertise on major cases in order to keep their city and the country safe.
