Season 12Public facts
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Episodes
Ten Ninety-Nine (1)Ten Ninety-Nine (1)Open episodeA 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)Blood Bleeds Blue (2)Open episodeAfter tragedy strikes Intelligence, the unit must persevere during an adrenalized manhunt across the city.
Off SwitchOff SwitchOpen episodeAtwater struggles to find balance as he teams up with a forensic psychologist on an armed robbery case.
The AfterThe AfterOpen episodeAssistant State's Attorney Chapman assists Intelligence with a sensitive investigation that drudges up painful memories for Voight.
Water and HoneyWater and HoneyOpen episodeIn the midst of a momentous rainstorm, Intelligence lends support to Officer Cook when she and her partner disagree about an investigation.
PawnsPawnsOpen episodeBurgess is put to the test as she looks to make an advancement in her career.
Contrition (1)Contrition (1)Open episodeTorres is haunted by his previous transgressions as Cook takes on a tense undercover assignment.
Penance (2)Penance (2)Open episodeThe unit learns the truth about a secret Torres has been keeping, as Deputy Chief Charlie Reid puts a focus on Intelligence.
Friends and FamilyFriends and FamilyOpen episodeCook turns to her family when Intelligence faces administrative roadblocks that threaten a kidnapping investigation.
ZoeZoeOpen episodeAn unexpected visitor causes disruption for Ruzek and Burgess amidst an emotional investigation involving an unidentified young girl.
In the Trenches (III)In the Trenches (III)Open episodeWith 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).
The Good ShepherdThe Good ShepherdOpen episodeIntelligence makes a gruesome discovery that leads Torres to go undercover at the juvenile detention center where he served time as a teen.
Street JesusStreet JesusOpen episodeA mounting street war threatens a community-center project that Atwater is trying to get off the ground.
MarieMarieOpen episodeRuzek grapples with his father's worsening condition while Intelligence searches for an elusive serial killer.
Greater GoodGreater GoodOpen episodeVoight questions Deputy Chief Reid's motives in enacting a Violence Reduction Initiative across a neighborhood where numerous gangs are fighting for territory.
Seen and UnseenSeen and UnseenOpen episodeBurgess' memory recall is put to the test following a deadly incident at her local diner.
TransferenceTransferenceOpen episodeThe search for the suspect in a shooting uncovers a surprising personal connection to Atwater and Val, raising questions about their relationship status.
DemonsDemonsOpen episodeVoight and Chapman work together to uncover Deputy Chief Reid's shadow dealings as Reid assigns Intelligence to a carjacking case.
Name Image LikenessName Image LikenessOpen episodeCook works with a confidential informant for the first time in a robbery-murder case with links to a star college athlete.
Black IceBlack IceOpen episodeRuzek witnesses a tragic accident on an icy bridge, leading Intelligence into a dark, sinister case involving sex trafficking.
Open CasketOpen CasketOpen episodeThe showdown with Deputy Chief Reid intensifies when Intelligence narrows in on Otero.
VowsVowsOpen episodeForced 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.