District 21 of the Chicago Police Department is composed of the uniformed cops, who deal with street crimes, and the Intelligence Unit, which deals with major crimes like drug trafficking and high-profile murders. Sgt Hank Voight - a tough boss who doesn't mind bending the rules a little in the pursuit of justice - heads the unit's elite team. The responsibilities of life on the force take a toll on the officers, as they struggle to balance their personal lives with the strain of the job. From Emmy-winning producer Dick Wolf.
Voight, still reeling from the death of informant Anna, tries to keep the neighbourhood clean as the team gets a new chief. (S10, ep 1)
A killer hijacks a prison van and the team rush to track him down before it's too late. Burgess questions Ruzek's motives. (S10, ep 2)
The team look into a string of robberies and Halsted connects with one of the victims. Upton suspects there's more to the story. (S10, ep 3) Enhanced for UHD.
Donde Vives: A murder hits close to home for rookie Dante Torres. Voight and Atwater help him manage tricky personal dynamics with his wary neighbours. (S10, ep 4)
A missing person pursuit leads the team into a web of human trafficking and it becomes clear O'Neil's son is linked the teen. (S10, ep 5)
Atwater's behaviour is called into question and the team look to uncover key evidence that could help clear his name. (S10, ep 6) Enhanced for UHD.
When evidence finally surfaces against O'Neal, the team work to build a case in secret and make a shocking discovery. (S10, ep 7)
To distract intelligence, O'Neal makes the team handle a dead fish case and difficult memories from Burgess' past arise. (S10, ep 8)
The team close in with every shred of evidence they can find on Sean O'Neal, who responds by hiring himself a lawyer. (S10, ep 9) Enhanced for UHD.
A string of robberies sees the team paired with an old friend of Ruzek's, whose style which causes friction with Torres. (S10, ep 10)
An ambush at a funeral leads the team into an investigation and Atwater must rely on someone from his past to find the shooters. (S10, ep 11)
I Can't Let You Go: O'Neal calls Upton from prison. The team attempt to stop a crime in progress before it's too late. (S10, ep 12)
Voight and the team help ASA Nina Chapman pursue a drug runner and a damaging secret from the past comes to light. (S10, ep 13)
After a shooting, Burgess and Ruzek find themselves stuck on a busy subway train. The team are drawn into a dark family drama. (S10, ep 14)
Blood and Honour: A family is poisoned at home and the team finds a link to the Becks. Ruzek goes undercover to work for their business. (S10, ep 15)
Voight takes the stand for ASA Chapman in a high-stakes murder trial and must work furiously to ensure justice prevails. (S10, ep 16)
As the team investigate a convenience store robbery, the evidence leads them to an unusual pair of suspects. (S10, ep 17)
A crime leads the team closer to the Beck family and their deadly ideology. Ruzek earns Samantha and Richard's trust. (S10, ep 18) Enhanced for UHD.
Atwater's worlds collide when a shooting at the building he owns in Burnside leaves a child dead. (S10, ep 19) Enhanced for UHD.
Upton is drawn into a deadly betrayal and finds herself in a fight for her life. Voight and the team scramble to find her. (S10, ep 20)
Torres finds himself in the midst of a murder case that hits close to home and struggles to reconcile his old life with his new one. (S10, ep 21)
In a nail-biting season finale, Ruzek and the team desperately scramble to get ahead of an unprecedented disaster. (S10, ep 22)