Ten Ninety-Nine (1)

Season 12 - Episode 1

A month after Voight's close brush with death, Intelligence is overwhelmed with cases as they catch a high-stakes drug bust.

Blood Bleeds Blue (2)

Season 12 - Episode 2

After tragedy strikes Intelligence, the unit must persevere during an adrenalized manhunt across the city.

Off Switch

Season 12 - Episode 3

Atwater struggles to find balance as he teams up with a forensic psychologist on an armed robbery case.

The After

Season 12 - Episode 4

Assistant State's Attorney Chapman assists Intelligence with a sensitive investigation that drudges up painful memories for Voight.

Water and Honey

Season 12 - Episode 5

In the midst of a momentous rainstorm, Intelligence lends support to Officer Cook when she and her partner disagree about an investigation.

Pawns

Season 12 - Episode 6

Burgess is put to the test as she looks to make an advancement in her career.

Contrition (1)

Season 12 - Episode 7

Torres is haunted by his previous transgressions as Cook takes on a tense undercover assignment.

Penance (2)

Season 12 - Episode 8

The unit learns the truth about a secret Torres has been keeping, as Deputy Chief Charlie Reid puts a focus on Intelligence.

Friends and Family

Season 12 - Episode 9

Cook turns to her family when Intelligence faces administrative roadblocks that threaten a kidnapping investigation.

Zoe

Season 12 - Episode 10

An unexpected visitor causes disruption for Ruzek and Burgess amidst an emotional investigation involving an unidentified young girl.

In the Trenches (III)

Season 12 - Episode 11

With the suspects still at large and conditions worsening underground, first responders race to reach the trapped victims, while the investi...

The Good Shepherd

Season 12 - Episode 12

Intelligence makes a gruesome discovery that leads Torres to go undercover at the juvenile detention center where he served time as a teen.

Street Jesus

Season 12 - Episode 13

A mounting street war threatens a community-center project that Atwater is trying to get off the ground.

Marie

Season 12 - Episode 14

Ruzek grapples with his father's worsening condition while Intelligence searches for an elusive serial killer.

Greater Good

Season 12 - Episode 15

Voight questions Deputy Chief Reid's motives in enacting a Violence Reduction Initiative across a neighborhood where numerous gangs are figh...

Seen and Unseen

Season 12 - Episode 16

Burgess' memory recall is put to the test following a deadly incident at her local diner.

Transference

Season 12 - Episode 17

The search for the suspect in a shooting uncovers a surprising personal connection to Atwater and Val, raising questions about their relatio...

Demons

Season 12 - Episode 18

Voight and Chapman work together to uncover Deputy Chief Reid's shadow dealings as Reid assigns Intelligence to a carjacking case.

Bird Gets Worm

Season 12 - Episode 19