Matthew Fahey

The staff tries to deal with physical and emotional trauma in the wake of the vengeful gunman's deadly rampage; Derek makes a spontaneous decision to resign as chief and return to surgery.

After a series of brutal home invasion robberies, Upton immerses herself in the case and finds herself caught between Voight and Halstead.

At a party meant to galvanize opposition to the proposed strip mine, Mags Bennett (Margo Martindale) teams up with Boyd Crowder (Walton Goggins) to cut her own private deal with Black Pike Coal. And when the gathering exposes the truth behind her dad’s disappearance, Loretta McCready looks to escape the Bennett clan’s clutches.

During a murder investigation, a woman bites Tommy; Megan turns to the new health commissioner for help uncovering the truth behind strange rabies cases.

The world of competitive dance turns deadly when the mother of a star performer is stabbed to death at a competition. Jane and the team search for clues, but they soon realize something is off about the woman's history. Korsak has his hands full when his stepson is accused of shooting a cop. Recurring guest star LOLITA DAVIDOVICH appears as Korsak's ex-wife, Melody.