Ten Ninety-Nine

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

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

Off Switch

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

The After

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

Water and Honey

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

Pawns

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

Contrition

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

Penance

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

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

Zoe

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

In the Trenches (3)

This is the third part of a major crossover with "Chicago Fire," "Chicago Med," and "Chicago P.D.": Chicago Fire – S13E11 – In the Trenches (1) Chicago Med – S10E11 – In the Trenches (2) Chicago P.D. – S12E11 – In the Trenches (3) ************************************* With the suspects still at large and conditions worsening underground, first responders race against the clock to reach the trapped victims, while the investigation into the assailants comes into focus.

The Good Shepherd

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

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

Marie

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

Greater Good

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

Seen and Unseen

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

Transference

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

Demons

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

Name Image Likeness

Cook works with a confidential informant for the first time in a robbery-murder case with links to a star college athlete.

Black Ice

Open Casket

Vows