Patrick Gough

Retired Commander Perry (guest star Robert Ray Wisdom) enlists Voight (Jason Beghe) and the team to help extract his cop nephew from a unit of corrupt officers who are robbing drug dealers. When things go bad Voight must take down a younger, more violent version of himself. Meanwhile, Lindsay (Sophia Bush) struggles to stay clean. At the same time a woman from Olinsky's (Elias Koteas) past reaches out to him. Also starring Jon Seda, Jesse Lee Soffer, Patrick Flueger, Marina Squerciati, LaRoyce Hawkins, Amy Morton and Brian Geraghty. guest star.

Kane’s moves with the housing project escalate from a state of unrest to rioting and looting. As Chicago burns, Kane secretly seeks treatment at an alternative clinic where his past haunts him. In Kane’s absence, his wife, Meredith, steps into the mayoral role.

In the series premiere episode, Teresa Colvin, the city’s first female superintendent, lobbies for a city corruption task force to investigate Alderman Ronin Gibbons, a building-magnate-turned-politician. Meanwhile, Colvin’s ex-partner and larger-than-life veteran of the Chicago Police Department, Jarek Wysocki, investigates a suspicious murder in Grant Park alongside his new partner Caleb Evers. Also in Jarek’s charge are his niece, Vonda Wysocki; her hotshot partner, Isaac Joiner; and Liam Hennessey, an Irish thug who blends in with the gritty world of local crime. Together, these cops stop at nothing to navigate the Windy City’s underbelly to fight crime and bring down Alderman Gibbons’ empire of corruption.

Following the shocking events related to a fallen officer, Teresa and Jarek vow to bring whoever is responsible to justice. In the meantime, Alderman Gibbons pays a visit to the victim’s family to offer his condolences and plant a few seeds of betrayal, implicating members of the Chicago Police Department. As every officer in the city hits the streets to avenge this cop killer, Jarek and Caleb follow up on some of Liam’s leads, while Vonda and Isaac are promoted to the organized-crime task force.

Jarek and Caleb arrive first on the scene at a bank robbery and chase the thief through the streets of Chicago only to find he has met a gruesome end. As the Chicago Police Department pieces together the clues of the robber, Superintendent Colvin conducts a critical meeting with Alderman Gibbons about a key construction site. Duplicitous politicking raises the stakes and further exposes the depth of corruption in the city.

After a teenage boy is brutally murdered while spreading the word of his church in Chinatown, Detectives Wysocki and Evers enlist Superintendent Colvin to gain the cooperation of locals. When the unofficial mayor of Chinatown is uncooperative, Alderman Gibbons is called upon to broker a deal that accelerates the investigation. Meanwhile, Teresa’s brother-in-law (guest star Rockmond Dunbar) rolls the dice with a shady business deal, and Liam goes even deeper undercover.