4 seasons available
Voight teams up with an unlikely ally to take a killer off the streets while fighting to bring his Intelligence unit back together.
The Intelligence Unit races against time when a man from Torres' own neighborhood is violently abducted.
A homicide in the neighborhood where Burgess and Ruzek reside forces the team to investigate complicated relationships within the tight-knit community they call home.
A string of violent robberies across the city digs up one family's secrets; a surprising detail of Voight's past resurfaces.
Atwater reunites with an old friend from his academy days after a bombing rocks downtown Chicago.
Torres is dragged into a deadly conspiracy when a routine errand takes a violent turn.
Voight's suspicions ring true when a violent break-in steers the Intelligence Unit back to a chilling figure from a previous case.
Voight and the team work together to uncover the truth of the Bell case before more lives are lost.
Platt finds herself challenged when a simple favor for a former recruit spirals into something far more devastating.
Torres investigates the conspiracy surrounding the Morgan case, leading Intelligence into a tangled web of secrets.
Atwater pushes his personal life aside as he goes undercover in the flashy high-stakes world of carjacking.
Details about Imani's past emerge as the Intelligence Unit seeks the truth behind the sudden resurfacing of a decades-old missing child case.
An airfield emergency triggers a deeper mystery involving a passenger plane, propelling the Intelligence Unit into a high-stakes pursuit of the culprit, all under the sharp eye of the FBI.
Burgess takes a rookie officer under her wing as the team investigates a volatile drug case.
Ruzek grows suspicious when a DEA agent contacts him for details surrounding a missing informant.
Torres tries to stop the cycle of violence after a teenager is killed in an act of revenge.
Tensions between Voight and Imani begin to form when a series of ATM robberies hits the city.
A deadly house party leads the Intelligence Unit to uncover a family's alarming secret; Atwater faces a personal turning point.
Ruzek's investigation into a mysterious VHS tape found among his father's belongings has unexpected consequences, sending the Intelligence Unit scrambling to uncover the truth behind a cold case.
Imani struggles to maintain her composure when a new lead reignites her investigation into her sister's disappearance.
When a key witness refuses to cooperate, the Intelligence Unit is forced to rethink their strategy to locate a fleeing suspect; Imani must confront her past before it's too late.
With Voight sidelined, Antonio and Ruzek clash as Intelligence races to solve a high-stakes case involving a series of overdose deaths caused by bad heroin.
Intelligence joins forces with Firehouse 51 after a devastating high-rise fire is ruled arson, and Halstead, who has a tragic connection to the fire, struggles to stay objective as he gets deeper into the investigation.
Intelligence's investigation into a string of robberies targeting vulnerable immigrants escalates when a teenage girl connected to a critic of the CPD is kidnapped by the robbers.
Burgess finds herself in a difficult situation when she responds to a call while a civilian is in her car for a ride-along that was requested by Brennan.
Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.
When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.
Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.
The stakes become personal for Atwater during Intelligence's investigation of a drug dealer suspected of homicide.
As his dependency on prescription painkillers grows, Antonio crosses a line, endangering someone close to him and ultimately putting the entire team at risk.
Intelligence investigates a carjacking turned homicide; Ruzek makes a decision that puts his life and career at risk to protect those close to him.
Intelligence crosses with a mayoral candidate while investigating the fatal shooting of a well-known defense attorney; Antonio returns to work but questions his own judgment when an operation goes sideways.
Voight pursues a suspect against the police commissioner's orders; Halstead puts his career at risk when a case involving a recently released drug dealer turns personal.
When Atwater goes undercover to bring down the longtime head of a criminal enterprise, he becomes entangled in a situation that tests his allegiances as well as his conscience.
Upton and Burgess find themselves in a difficult situation when Intelligence tracks a cache of cop killer machine guns to a local gun show in Wisconsin.
When Cruz's undercover work reveals a lead in a case tracking multiple robberies, the situation escalates quickly, causing friction between Voight's Intelligence Unit and the Chicago Fire Department.
Voight and the Intelligence Unit focus all their effort and resources into investigating the disappearance of an exotic dancer who served as a long-time criminal informant for their team.
The victim of a murder-arson case is discovered to have been wearing a CPD issued wire at the time of his death; Burgess meets her new partner; Cmdr. Crowley questions Lindsay about the night intelligence pursued Justin's killer.
Voight and the team search for answers after discovering a man badly beaten and learning that his fiancée is missing; Lindsay asks Halsted a surprising question; Platt is berated by Vogel for going over his head.
After Platt is physically assaulted while getting into her car, she's rushed to Chicago Med, where Mouch finds himself being questioned; Antonio and the team look for previous threats against Platt.
Lindsay and Ruzek respond when a car crashes through a crowd of concert-goers and a gunman opens fire; Burgess sees Atwater's brother somewhere he shouldn't be.
The body of a college student is found with a backpack full of a drug linked to deadly overdoses around the city; Tay finds a bloodied child with a dark story about his parents; Mouse looks to re-enlist in the army.
While responding to a complaint, Burgess and Sorensen find the body of a 16-year-old girl in a baseball player's (Billy Burke) house; Lindsay receives a mysterious delivery that might have ties to her past.
When the only witness to the rape and murder of a young man gets killed, the team suspects that someone was paid to take the victim out; Antonio receives a job offer from the state attorney's office.
When a man opens fire on a patrol car and wounds Roman, Burgess pursues the shooter; with no gun found at the scene, Burgess faces the accusation of shooting an unarmed man; the man who sent Voight to prison is assigned to help defend Burgess.
Lindsay and Halstead discover the youngest daughter is the only survivor of a shooting at a family home; Antonio and Olinsky investigate a pyramid scheme self-help group; Platt tries to convince Crowley that Burgess and Roman should remain partners.
When the body of a single mother is found in the trunk of her car, the team is shocked to learn the victim had contact with Voight's reformed son.