Original air date: 09/27/2017 Runtime: 42:23 min. The district is in a state of change Lindsay has moved to New York and the CPD is under scrutiny about the corrupt nature of its institution. Under the watchful eye of the city, the team attempts to bust a gun deal that quickly turns dicey when innocent civilians and children get involved. Tension erupts when Chief Lugo (guest star Esai Morales) brings in Denny Woods (guest star Mykelti Williamson) to review the shootout, and Halstead (Jesse Lee Soffer) becomes a key player in the outcome of the case.
Original air date: 10/04/2017 Runtime: 42:00 min. After a van explodes during a Chicago street festival, a Muslim patrol officer Frank Toma (guest star Ben Youcef) goes missing and evidence quickly piles up pointing to his involvement. Burgess (Marina Squerciati) who helped train Toma is desperate to prove his innocence, even if that means going against her superiors.
Original air date: 10/11/2017 Runtime: 42:21 min. When a young Latina woman is brutally murdered, Intelligence suspects she may have been working as a drug mule. With Antonio (Jon Seda) leading the case, the team's investigation takes them into the grim world of meat processing, and the discovery that there may be a different motive behind her death.
Original air date: 10/18/2017 Runtime: 42:57 min. While investigating a drug related homicide, Intelligence is stonewalled by the 'no snitch' culture of the neighborhood. And Atwater (LaRoyce Hawkins) discovers a personal connection to the case. Meanwhile, the police's own code of silence is put to the test when Upton (Tracy Spiridakos) is asked about Ruzek's (Patrick John Flueger) rough altercation with a suspect.
Original air date: 10/25/2017 Runtime: 42:40 min. When Intelligence busts a meth lab run by gang leader Marshall Carter (guest star Aaron Roman Weiner), they uncover a re-homing scam in which children adopted from foreign countries are abandoned, then sold online. Meanwhile, Atwater (LaRoyce Hawkins) struggles with the difficult decision about whether to move his siblings Jordan (guest star Kylen Davis) and Vinessa (guest star Bobbi MacKenzie) to a safer environment outside of Chicago.
Original air date: 11/08/2017 Runtime: 42:15 min. A picture perfect family is shot dead in their home and the team goes in search of a drug dealer with a likely connection. Voight (Jason Beghe) asks for the help of Vice Sergeant Sean McGrady (guest star Wil Traval) who has an old beef with Upton (Tracy Spiridakos). When McGrady turns up dead during the investigation, the case takes an unlikely turn.
Original air date: 11/15/2017 Runtime: 42:57 min. In the wake of several gang related child abductions, Intelligence must race against time to find a kidnapped boy. Owing to their swiftness and military precision, the team scours the VA records and tracks the suspects to a former Army Ranger. With his previous experience as a Ranger, Halstead (Jesse Lee Soffer) convinces Voight (Jason Beghe) to send him undercover to try and get information from inside.