1Ten Ninety-Nine (1)
A month after Voight's close brush with death, Intelligence is overwhelmed with cases as they catch a high-stakes drug bust.
2Blood Bleeds Blue (2)
After tragedy strikes Intelligence, the unit must persevere during an adrenalized manhunt across the city.
3Off Switch
Atwater struggles to find balance as he teams up with a forensic psychologist on an armed robbery case.
4The After
Assistant State's Attorney Chapman assists Intelligence with a sensitive investigation that drudges up painful memories for Voight.
5Water and Honey
In the midst of a momentous rainstorm, Intelligence lends support to Officer Cook when she and her partner disagree about an investigation.
6Pawns
Burgess is put to the test as she looks to make an advancement in her career.
7Contrition (1)
Torres is haunted by his previous transgressions as Cook takes on a tense undercover assignment.
8Penance (2)
The unit learns the truth about a secret Torres has been keeping, as Deputy Chief Charlie Reid puts a focus on Intelligence.
9Friends and Family
Cook turns to her family when Intelligence faces administrative roadblocks that threaten a kidnapping investigation.
10Zoe
An unexpected visitor causes disruption for Ruzek and Burgess amidst an emotional investigation involving an unidentified young girl.
11In the Trenches (III)
With the suspects still at large and conditions worsening underground, first responders race to reach the trapped victims, while the investigation into the assailants comes into focus. The crossover starts on Chicago Fire S13E11 In the Trenches (I) and Chicago Med S10E11 In the Trenches (II).
12The 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.
13Street Jesus
A mounting street war threatens a community-center project that Atwater is trying to get off the ground.
14Marie
Ruzek grapples with his father's worsening condition while Intelligence searches for an elusive serial killer.
15Greater Good
Voight questions Deputy Chief Reid's motives in enacting a Violence Reduction Initiative across a neighborhood where numerous gangs are fighting for territory.
16Seen and Unseen
Burgess' memory recall is put to the test following a deadly incident at her local diner.
17Transference
The search for the suspect in a shooting uncovers a surprising personal connection to Atwater and Val, raising questions about their relationship status.
18Demons
Voight and Chapman work together to uncover Deputy Chief Reid's shadow dealings as Reid assigns Intelligence to a carjacking case.
19Name Image Likeness
Cook works with a confidential informant for the first time in a robbery-murder case with links to a star college athlete.
20Black Ice
Ruzek witnesses a tragic accident on an icy bridge, leading Intelligence into a dark, sinister case involving sex trafficking.
21Open Casket
The showdown with Deputy Chief Reid intensifies when Intelligence narrows in on Otero.
22Vows
Forced to cease operations while under investigation by Internal Affairs, Intelligence goes off-book to bring down Reid once and for all. Ruzek and Burgess consider delaying their nuptials amid the uncertainty.