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Episode 1

Closure

Synopsis

When a P.D. informant is murdered, the team digs in to track down the perpetrator only to learn a shocking truth. Voight and Ruzek strategize to help Burgess.

Episode 2

42 Mins

Rage

Synopsis

Officer Kim Burgess fights for her life as the team scrambles to find her kidnapper. Dep. Supt. Sam Miller is desperate to find her son's killer. Voight and Upton deal with the aftermath of their deadly decision. Ruzek struggles with the pressure of the situation.

Episode 3

42 Mins

The One Next to Me

Synopsis

Halstead’s past resurfaces when a former Army colleague is implicated in a deadly blast. As the FBI launches an investigation into Roy’s disappearance, Upton feels the pressure of the secret she and Voight are sharing.

Episode 4

42 Mins

In the Dark

Synopsis

When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path.

Episode 5

42 Mins

Burnside

Synopsis

As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.

Episode 6

42 Mins

End of Watch

Synopsis

Ruzek reunites with an old colleague to take down a crime ring but when things don’t add up, Voight and Burgess do some investigating of their own.

Episode 7

42 Mins

Trust Me

Synopsis

As the team works to bring down a drug ring, Voight builds trust with a new informant. However, it soon becomes clear she has a plan of her own.

Episode 8

42 Mins

Fractures

Synopsis

As the team investigates the stabbing of a father with two young daughters, they begin to suspect there is more to the story than meets the eye. The FBI investigation into Roy Walton’s death intensifies while Voight, Upton and Halstead feel the heat.

Episode 9

41 Mins

A Way Out

Synopsis

With the FBI closing in on the Roy Walton investigation, Voight and Halstead strategize on a way out. After a city bus driver is shot by a passenger, the team investigates a possible abduction.

Episode 10

42 Mins

Home Safe

Synopsis

The team searches for a missing child in what turns out to be a very complicated case. Burgess and Ruzek are in for a shock when someone from Makayla’s past comes forward.

Episode 11

41 Mins

Lies

Synopsis

Voight employs his new informant to help solve a tricky drug trafficking case. Atwater, who once again struggles to reconcile his personal and professional life, reaches a decision.

Episode 12

42 Mins

To Protect

Synopsis

The team works together to identify the head of the brutal Los Temidos gang. Voight dives deeper into his informant Anna Avalos' past when her undercover role is threatened.

Episode 13

42 Mins

Still Water

Synopsis

While out for a jog, Upton witnesses a horrible car crash and risks her own life to save the passengers. After learning more about the victims, the team must track down the man responsible for the brutal crash.

Episode 14

42 Mins

Blood Relation

Synopsis

The team searches for a brutal killer with a signature modus operandi. Burgess and Ruzek double down in their fight to retain custody of Makayla.

Episode 15

41 Mins

Gone

Synopsis

The unit scrambles to search for one of their own who is in grave danger.

Episode 16

42 Mins

Closer

Synopsis

When a young man is shot outside the Cárabo Bakery, the team works to connect the shooting to bakery owner Javier Escano, who has been under surveillance. Despite the increasing danger, Voight helps informant Anna Avalos get even closer to their target.

Episode 17

42 Mins

Adrift

Synopsis

Ruzek's search for the daughter of an old family friend leads the team into a serious drug investigation. Burgess and Ruzek struggle to move on from the emotional aftermath of Makayla's abduction.

Episode 18

42 Mins

New Guard

Synopsis

Halstead takes a new recruit under his wing during an investigation. The dynamics are challenging, however, and questions arise over the recruit's complicated past.

Episode 19

42 Mins

Fool’s Gold

Synopsis

After the murder of a wealthy Chicago man, Atwater and the team dig in to uncover the truth, suspecting there is more to the story than meets the eye.

Episode 20

42 Mins

Memory

Synopsis

Voight and the team delve into a cold case in search of clues to solve a shocking new crime. With its focus on buried memories, the case sparks concern for Burgess and Ruzek about Makayla's mental healing.

Episode 21

42 Mins

House of Cards (1)

Synopsis

As the team closes in on drug kingpin Javier Escano, Voight is forced to lie to his undercover informant Anna to keep her on track. Their deteriorating trust threatens an increasingly tenuous operation.

Episode 22

42 Mins

You and Me (2)

Synopsis

After an explosion rocks the case, the team scrambles to finally take down Escano as everyone nears their breaking point.