
Chicago P.D.'s Intelligence Unit, led by Sgt. Hank Voight, investigates the city's most formidable offenses -- drug trafficking, organized crime, high-profile murders and other large-scale felonies. The squad -- made up of Voight, Trudy Platt, Kim Burgess, Adam Ruzek, Kevin Atwater, Jay Halstead and Hailey Upton -- is committed to protecting the city and seeking truth, but in the midst of a changing criminal justice system, the team struggles to maintain peace in the community. Voight must learn to adapt to a shifting sociopolitical climate and embrace new tactics to crack down on crime in the city he loves.

Voight and the team pursue a ruthless crime ring whose business has hit close to home; as they dig deeper, the extent of the danger becomes more apparent; Deputy Superintendent Samantha Miller second-guesses her decisions.

Voight and the team muster all their expertise to bring down a deadly crime ring; Burgess finds herself in a dangerous situation.

Burgess fights for her life as the team scrambles to find her kidnapper; Dep. Supt. Sam Miller is desperate to find her son's killer; Voight and Upton deal with the aftermath of their decision; Ruzek struggles with the pressure of the situation.

When a P.D. informant is murdered, the team digs in to track down the perpetrator only to learn a shocking truth; Voight and Ruzek strategize to help Burgess.