The Forgotten – Voight’s “stay out of politics” stance is challenged as Intelligence uncovers the details surrounding a prolific serial killer.
Good Men – Using information from Chicago Fire’s Cruz, Intelligence chases down the robbery crew that’s been using the lockbox key. Voight is under pressure to bring the crew to justice without tarnishing the reputation of a murdered firefighter who might have been involved.
Ties That Bind – The team travels to a Wisconsin gun show to take down a supplier who’s manufacturing “cop killer” machine guns. Before going undercover together, Burgess discovers that Upton is dating Ruzek.
Night in Chicago – Atwater goes undercover to bring down the longtime head of a criminal enterprise and becomes entangled in a situation that tests his allegiances as well as his conscience.
Outrage – While chasing a heroin supplier, CPD crosses paths with a convicted criminal recently released on a technicality. Halstead’s history with the man threatens the team’s ability to put him back in prison.
Trust – A defense attorney is murdered after a fundraiser, and Intelligence must confront the world of campaign finance, which makes them reconsider their decision to back the current pro police mayoral candidate.
Brotherhood – Voight and Ruzek lock horns over how to handle the aftermath of the Antonio situation. Meanwhile, a series of violent carjackings turns deadly, and Ruzek must rely on a C.I. he grew up with to help solve the case.
Black and Blue – While CPD tries to take down a drug kingpin, Atwater faces a tough choice between doing what’s required to solve the murder of a young dealer and what’s best for the community.
Trigger – Intelligence suspects a local mosque’s leader is behind the bombing of an Army recruitment station. After a second explosion, Voight urges Halstead to follow the facts and not let his time in the service cloud his judgment.
True or False – The wife of an alderman is beaten to death, and Voight is under pressure from First Deputy Superintendent Brennan to close the case. To elicit a confession, Upton tells a dark story about her childhood.