Intelligence investigates the shooting of a parole officer. Voight is forced to allow an outsider into the bullpen. Imani makes a difficult decision about her sister.

A significant turning point in Atwater's life prompts him to make a decision about his future.

A tip from a former C.I. leads Intelligence to a gruesome discovery. Voight becomes increasingly skeptical of Charlie Boyden's motives.

An eager young officer assigned to one of Chicago's most dangerous districts catches a case that Intelligence has an eye on.

Burgess takes on a risky undercover assignment while struggling to feel settled in her new house.

Intelligence adapts to a different style of community policing while working a kidnapping case in Chicago's Chinatown.

Needing to fill gaps in his audit report of Intelligence, Charlie Boyden joins the investigation of a mysterious drug dealer known only as Ghost.