Intelligence seeks justice for Olinsky when he's stabbed in prison; Antonio's loyalty is…

Halstead and Atwater go undercover to prevent military-grade weapons from hitting the street.…

When Voight witnesses the kidnapping of a woman who's somehow connected to his…

A string of stash house robberies lead back to an unlikely individual; Voight…

Upton resumes an undercover identity to take down a meth ring run by…

A prominent Alderman known for his urban revitalization efforts is murdered; Olinsky receives…

Intelligence enlists Firehouse 51 to help prevent the latest in a series of…

Intelligence tracks down a vigilante killing rapists and Burgess questions whether the men…

Intelligence investigates the murder of a basketball player following an anti-police rally and…

Intelligence works with a visiting detective to take down a gang from El…