Follows District 21 of the Chicago Police Department, which is made up of two distinctly different groups: the uniformed cops and the Intelligence Unit.
Jason Beghe / Jon Seda / Sophia Bush / Jesse Lee Soffer / Patrick John Flueger / Marina Squerciati / Elias Koteas / Laroyce Hawkins / Amy Morton / Brian Geraghty / Stella Maeve
Atwater turns to an unlikely source of support when a string of jewelry store robberies shake his confidence.
Returning from furlough, Torres goes undercover in a tense and high-stakes drug trafficking case.
Burgess works an extra shift at the 13th District and gets caught in the middle of a drive-by attack on refugees. The team works together to track down the shooter and uncover the true motive behind the attack.
Despite being on leave, Ruzek gets mixed up in a case after a late-night poker game is raided.
Tasked with shadowing a crisis prevention team, Upton finds her approach to policing at odds with the team's mental health clinician. The case brings out Upton's personal struggles, Voight stands by her.
As Richard Beck's timeline for a deadly attack moves up and Samantha panics, Ruzek and the team scramble to get ahead of unprecedented disaster.
Torres finds himself in the midst of a murder case that hits close to home and threatens to expose his troubled past. As he struggles to reconcile his old life with his new one, Voight keeps a watchful eye.
Upton is unwittingly drawn into a deadly betrayal and finds herself in a fight for her life. With minimal leads, Voight and the team scramble to find her before it's too late.
Atwater's worlds collide when there's a shooting at the building he owns in Burnside, which leaves a child dead. Atwater must confront his relationship with his father, Lew, as the brutal case forces them together.
A tragic crime leads the team closer to the Beck family and their deadly ideology. Ruzek makes progress infiltrating the Becks, earning Samantha and Richard's trust with a bold move.
As the team investigates a convenience store robbery, the evidence leads them to an unusual pair of suspects, revealing a dark personal drama and another potential victim. Burgess slowly makes strides tackling her past trauma.
Voight takes the stand in a high-stakes murder trial against notorious drug kingpin Arturo Morales. when it becomes clear that Morales and his henchmen have compromised a juror, Voight and the team work furiously to ensure justice prevails.
When a family is poisoned in their home, the team discovers a connection to the Becks. Ruzek goes undercover to work for their business, and as he gets closer to Samantha, chilling information about her father, Richard, comes to light.
After a brutal shooting, Burgess and Ruzek find themselves trapped aboard the busy "L" subway train. As they piece together scant evidence, the team is drawn into a dark family drama. Burgess' proximity to the shooting triggers harsh memories.
Voight and the team help ASA Nina Chapman pursue a drug runner who dodged prison years ago after Chapman's informant mysteriously disappeared. the investigation takes a turn when Voight uncovers a damaging secret from Chapman's past.
Sean O'Neal surprises Upton with a call from prison, revealing sensitive information; while Upton grapples with how to keep O'Neal at a distance, the team quickly mobilizes to stop a crime in progress before it's too late.
A shocking ambush at a funeral leads the team into a heated investigation to find the shooters. Much to Atwater's surprise, he must rely on someone from his past to help in the investigation, dredging up old memories and revealing new truths.
A series of brutal home invasion robberies finds the team paired with Det. Borkowski, an old friend of Ruzek's, to work the case. Things get complicated for Torres when it becomes clear Borkowski has a vastly different policing style.
After a shocking discovery, the team begins closing in on Sean O'Neal with every shred of evidence they can find. Determined to keep his son out of prison, Chief O'Neal hires a lawyer.
In an attempt to distract Intelligence from the investigation into his son, Chief O'Neal forces Voight and the team to handle a "dead fish case." However, when that dead fish turns into a complicated heater case, Burgess is thrown back into difficult memo
When actionable evidence finally surfaces against Sean O'Neal, Upton and the team work relentlessly to build a case in secret. They discover Sean is more elusive and dangerous than anticipated.
Atwater's reactions during a tense arrest are called into question. The team must dig in to uncover key evidence that could aid in the ongoing investigation and clear Atwater's name.
Upton's dogged pursuit of a missing teenage girl leads the team into a dark web of human trafficking. Chief O'Neal becomes involved with the unit's investigation when it becomes evident his son, Sean, has a connection to the missing girl.
A shocking murder pulls rookie officer Dante Torres into his own neighborhood. As Voight and Atwater help him navigate the case and manage tricky personal dynamics with wary neighbors, Torres realizes his life may be forever changed.
The team investigates a string of brutal pharmacy robberies and Halsted connects with one of the victims about their Army careers. Upton suspects there is more to the story and confides in Voight.
When a convicted murderer hijacks a prison van, the team scrambles to find him and the abducted prison guard before it's too late. Burgess questions Ruzek's motives in a case, creating tension between the two.
Still reeling from the death of informant Anna, Voight faces a new threat as he tries to keep the neighborhood clean. New wrinkles develop in the Upton, Halstead and Voight dynamic. The team gets a new chief.
After an explosion rocks the case, the team scrambles to finally take down Escano as everyone nears their breaking point.
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.
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.
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.
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.
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.
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.
The unit scrambles to search for one of their own who is in grave danger.
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.
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.
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.
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.<br />
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.
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.
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.
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.
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.
As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.
When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path.
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.
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 s
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.
Voight and the team muster all their expertise to bring down a deadly crime ring. Burgess finds herself in a dangerous situation.
Voight and the team pursue a ruthless crime ring whose business has hit close to home. As they dig deeper, the extent of the danger becomes more apparent. Deputy Superintendent Samantha Miller second-guesses her decisions.
After a series of brutal home invasion robberies, Upton immerses herself in the case and finds herself caught between Voight and Halstead.
The shocking murder of a young pregnant woman leads the team on a desperate hunt for the killer, revealing something even darker than expected. Burgess has to make a tough decision about Makayla.
The team pursues a crafty serial rapist. Sergeant Voight finds himself resisting some old, familiar tendencies in his quest for justice.
A wellness check on a family reveals signs of foul play, and Detective Upton is determined to find the parents and young daughter. As she delves further into the troubled family dynamics, she reflects on her own childhood trauma.
Ruzek's father, Bob, goes missing and the team races to find him before it's too late.
When a local business owner is gunned down in his shop, it becomes personal for Atwater, who patrolled the neighborhood as a young cop. Dep. Supt. Samantha Miller comes to Voight with a special request about Andre Cooper.
Ruzek and Atwater are tasked with making an arrest after a high-profile shooting. The situation becomes complicated when it's clear someone doesn't want them to make it back to the station.
After a series of deadly ambushes, the team goes undercover to bring down a dangerous new drug dealer who is determined to push out the competition. Ruzek's informant proves to be a loose cannon that could upset the whole operation.
Halstead and Ruzek try to infiltrate a crime ring and encounter a complicated situation. The team recruits an unlikely ally to help solve a murder.
The team investigates a rash of car jackings and finds the truth is more complicated than they realize. Burgess makes a discovery about a previous case that will change her life forever.
A cop is murdered, and suspicion falls on someone who has been holding a grudge against the officer. Intelligence works hard to solve the case, but Deputy Superintendent Samantha Miller is hesitant to defend him until she knows the whole story.
Ruzek and Burgess discover a child walking alone in the middle of the street and when they take her home, they discover her entire family has been murdered. Upton is approached with a job offer from the FBI.
The son of an influential former officer is implicated in a murder and Deputy Miller pressures Voight to charge him quickly so that the CPD isn't accused of preferential treatment. The stakes are raised in Atwater's fight against the blue wall after patro
The team responds to the shooting of a 5-year-old girl and they must work the case while facing new obstacles that come from the heightened attention on police reform. Atwater is targeted by a group of officers who want to hurt him for standing against th
Atwater goes under cover to take down a gun trafficking ring but discovers an officer from his past is under cover in the same organization.
The clock is on after Ruzek witnesses a woman's kidnapping and the team races to put the pieces together. Burgess tries to connect with Ruzek outside of work but he mysteriously distances himself from her.
Intelligence does everything they can to build a case against the elusive leader of a drug ring, but things get complicated when Rojas realizes someone she cares about might be involved.
Voight enlists the help of a reformed gang member to get a key witness' testimony in a murder case. More lives are put on the line as a gang war brews.
An armed robbery case quickly turns into a homicide investigation. When one suspect's background suggests domestic violence, Upton is forced to reckon with her childhood. Voight and Halstead butt heads over Halstead's righteous instinct.
Intelligence searches for the dealer who caused multiple overdoses and is connected to Roman's missing sister. The case becomes a homicide investigation when they find the dealer's dead body.
A homeless man's murder leads Intelligence to a criminal who has evaded capture for years. Rojas has a troubling experience with a young mentally ill man.
After receiving a distressing 911 call, Burgess enlists the team's help to track down a girl caught up in a sex-trafficking ring.
Voight makes a deal with Darius Walker to help bring down a rogue group of dirty cops dealing drugs that were supposed to be destroyed. Upton clashes with Voight and enacts her own form of justice.
Ruzek and Burgess's secret begins to have severe implications for their police work. A series of deadly acts of vandalism causes tensions to run high in the insular neighborhood of Canaryville. Atwater tries to reach out to his brother, but only pushes hi
As they await news of Halstead's fate, the team tries to focus on work, turning their attention to an illegal arms dealer. Atwater discovers his brother, Jordan, is back in Chicago and could be tied to the case. Voight faces the tricky task of how to deal
Halstead's secret ongoing relationship with a woman connected to another case puts him in jeopardy.
After injuring herself while pursuing a suspect, Burgess receives a shocking diagnosis. A homicide case turns into a missing persons case, with a sinister twist. Voight has to decide between justice and the letter of the law.
Voight pulls Darius in after Crawford asks Intelligence to investigate a dangerous drug, but there is little trust in the relationship. When their plan to nail a dealer goes awry and another CI is murdered, the team must make a tough decision about Darius
The shocking murder of young boys affects Halstead. Crawford encourages Intelligence to use a new facial-recognition software to help identify a suspect, but the plan backfires.
A murder in a Bulgarian neighborhood results in a challenging investigation when locals won't talk to police. Ruzek has a clash with a patrol officer.
After zeroing in on the suspect responsible for the bioterrorism that's gripping Chicago, the PD prepares to undertake their biggest manhunt yet. Upton is torn between helping track down the perp and providing emotional support to the scared young girl th
After a botched carjacking turns out to be something much bigger, Voight's unit goes toe-to-toe with a smart drug kingpin who only works with women. New recruit Vanessa Rojas struggles with the transition from undercover to Intelligence, but the new case
When Atwater goes undercover in a dangerous South Side drug syndicate, he learns there may be more to its kingpin than meets the eye. Halstead tries to join Atwater undercover, but finds himself at a disadvantage. Voight petitions the brass to show Ruzek
When Kelton is found murdered, Voight's grudge against the mayor-elect puts him under suspicion. Upton and Halstead are eager to prove their sergeant's innocence, but the more evidence they gather, the closer they come to doing the opposite. After making
With Kelton's election all but assured, Voight and his team must go off book in a last-ditch effort to save Intelligence from getting axed.
Antonio struggles with his guilty conscience as he tries to take down a major drug dealer. In order to protect his team, Voight takes a big shot at Kelton.
A violent crew is hitting pharmaceutical delivery trucks and stealing drugs, but their motivation is more complicated than just money. The case tests Upton and Ruzek's relationship.
Intelligence's investigation into the murder of Burgess' boyfriend threatens to reveal a dark side she was unaware of, but the real motivation for his murder uncovers a much more unsettling truth.
With the threat of a gang war looming, Voight and Ray Price must organize a peace summit to end the bloodshed before more innocent people get hurt. Burgess evaluates her future with Blair.
A mayoral candidate is shot by an unidentified sniper, and CPD races to catch the shooter before he can take out his next target.
Voight's "stay out of politics" stance is challenged as Intelligence uncovers the details surrounding a prolific serial killer.
Using information from Chicago Fire's Cruz, Intelligence chases down the robbery crew that's been using the lockbox key. Voight is under pressure to bring the crew to justice without tarnishing the reputation of a murdered firefighter who might have been
The team travels to a Wisconsin gun show to take down a supplier who's manufacturing "cop killer" machine guns. Before going undercover together, Burgess discovers that Upton is dating Ruzek.
Atwater goes undercover to bring down the longtime head of a criminal enterprise and becomes entangled in a situation that tests his allegiances as well as his conscience.
While chasing a heroin supplier, CPD crosses paths with a convicted criminal recently released on a technicality. Halstead's history with the man threatens the team's ability to put him back in prison.
When a defense attorney is murdered after a fundraiser, Intelligence must confront the world of campaign finance, which makes them reconsider their decision to back the current pro-police mayoral candidate.
Voight and Ruzek lock horns over how to handle the aftermath of the Antonio situation. Meanwhile, a series of violent carjackings turns deadly, and Ruzek must rely on a C.I. he grew up with to help solve the case.
In an attempt to dig himself out of a hole and save someone close to him, Antonio crosses a line that puts the entire team at risk.
While CPD tries to take down a drug kingpin, Atwater faces a tough choice between doing what's required to solve the murder of a young dealer and what's best for the community.
Intelligence suspects the leader of a local mosque is behind the bombing of an Army recruitment station. After a second explosion, Voight urges Halstead to follow the facts and not let his time in the service cloud his judgment.
The wife of an alderman is beaten to death, and Voight is under pressure from First Deputy Superintendent Brennan to close the case. To elicit a confession, Upton tells a dark story about her childhood.
While undercover, Ruzek discovers his father is working for a suspected drug dealer and is forced to ask the question: is his dad involved?
A ride along goes sideways, and Burgess is faced with a difficult choice: follow the advice of Voight, or a potential new ally.
Politics get in the way as the team tries to rescue a teenage girl kidnapped by a robbery crew. Voight and Platt try to exonerate Olinsky.
After discovering the true cause of the high-rise fire, Intelligence races to find the man responsible. And for Halstead it's personal.
Bad heroin is causing overdoses in Chicago, and Intelligence is a man down with Voight suspended. Antonio takes charge, but Ruzek undermines his authority.
A string of stash house robberies lead back to an unlikely individual; Voight confronts a key witness in the Bingham investigation.
Upton resumes an undercover identity to take down a meth ring run by a former criminal contact; Voight calls in a favor for Olinsky when pressure from Woods mounts.
A prominent Alderman known for his urban revitalization efforts is murdered; Olinsky receives an ultimatum from Woods.
Intelligence enlists Firehouse 51 to help prevent the latest in a series of bombings targeting the media.
Intelligence tracks down a vigilante killing rapists and Burgess questions whether the men who attacked her sister have really been punished.
Intelligence works with a visiting detective to take down a gang from El Salvador that has infiltrated Chicago.
Atwater disappears at the house of a convicted felon and Intelligence tries to rescue him.
While trying to find the pimp, Intelligence stumbles on the women's shelter where he's scouting out girls. And Burgess moves the case forward with a series of confidential tips, but risks putting her informant in harm's way.
Halstead's partying with Camila unintentionally puts him in the middle of a drug-related homicide. He's forced to choose between loyalty to his unit and his girl. Meanwhile, Voight finally discovers the mole in his unit.
The death of Judge Tommy Wells' daughter puts Intelligence on the track of a pill mill spreading into the suburbs of Chicago and the doctor enabling it. Meanwhile, Voight discovers who's been leaking information from the 21st.
A Congressman who's friends with Voight is found with a dead Ukrainian girl.
A Muslim patrol officer is suspected of causing a van to explode during a Chicago street festival when he goes missing and evidence points to his being involved.
A young Latina woman is brutally murdered and it's suspected she have been working as a drug mule until a different motive for her death is discovered.
Intelligence attempts to bust a gun deal that results in innocent bystanders getting shot.
Lindsay deals with the consequences of her actions when her mother is suspected of murder.
Intelligence tracks down a group of vigilantes torturing and killing pedophiles.
Intelligence uncovers a surprising crew of suspects in a series of bank robberies.
Voight uncovers a connection between the murder of a teenage boy and a 17-year-old case.
Burgess's sister becomes a sexual assault victim after she's encouraged to spend a night out with friends.
Intelligence investigates one of Chicago's wealthiest families when "Night Crawler" Bobby Trent is murdered.
A hiker leads intelligence to a woman being held hostage in the woods outside Chicago.
Intelligence works to find the arsonist behind a warehouse fire that left Olinsky's daughter fighting for her life.
Intelligence re-opens a case when a grieving father seeks to avenge his daughter's murder.
When a burnt body is found in a torched house along with an injured boy, Intelligence works to find the cause.
The investigation of a jogger's murder in the park is blocked by a church offering sanctuary to the prime suspects.
When the body of a young woman is found, the Chicago police realize there's a serial killer at large after comparing her case with others.
The only witness in the case against a suspected serial rapist is found murdered.
A teenage girl is found dead in the home of a baseball player who's a friend of Olinsky's.
Intelligence tracks down the people who have been dealing a drug that's been linked to several overdoses throughout Chicago.
Intelligence investigates a shooting outside a concert that leads to a tangled web of gang-related violence.
Intelligence tracks down the people who've been dealing a drug that's causing multiple overdoses in the city.
Intelligence searches for the fiance of a man found badly beaten in the most dangerous neighborhood of District 21.
Intelligence investigates a murder-arson case as Voight and Lindsay continue to deal with the aftermath of Justin's death.
A murder investigation becomes personal for Voight when his son Justin is attacked in the same manner as a widowed, single mother whose body is found in the trunk of her car.
The team investigates a pyramid scheme operation that may be linked to a brutal murder at a family residence.
Burgess goes to court for shooting a 17-year-old honor student she suspects shot Roman.
Intelligence searches for the culprit who left a newborn baby in a duffel bag.
The team looks for a suspect who held a woman for months, physically abusing her and psychologically attempting to manipulate her into forgetting her identity.
The team investigates a kidnapping at a secret shelter for battered women.
Halstead and his co-workers get caught up in a violent shootout with bank robbers while on his off-duty job at the dispensary.
The police investigate a boy's execution-style murder, which may be connected to another shooting. The incident also leads officers and members of the community to gather for a candlelight vigil.
A college professor is caught smuggling heroin to Canada.
SVU detectives Olivia Benson and Odafin Tutuola come to Chicago to help find escaped killer Greg Yates.
Lindsay goes undercover to find a rogue police officer who targets women at a local casino.
Voight enlists his former cell mate to help take down a major cocaine supplier, while Burgess makes a move regarding her relationship with Ruzek and Roman comes up with a plan to fund Platt and Mouch's wedding.
The team investigates the robbery of a luxury condo and Voight suspects that the family was knocked out by a powerful gas.
A doctor from Voight's past is under investigation when four of his patients are sent to Chicago Med for an overdose of chemotherapy.
When a woman's decapitated body found in Lake Michigan is connected to Voight's social group, Lindsay worries that his relationship with the group could affect his ability to see the case objectively.
The team discovers the mutilated body of a government official and learn that he had access to very important devices.
Intelligence tries to find a missing teenage boy they believe could be a threat to the students at his wealthy school when they find disturbing drawings in his notebook.
When an undercover job goes south, Ruzek is investigated by a street deputy who will determine his future with the unit.
Voight and Olinsky hunt down a criminal they once put away.
A disgruntled father threatens to hold a member of Intelligence hostage until the team tracks down his missing daughter.
Burgess and Roman find the body of an eight-year-old boy while pursuing a gang-banger.
Intelligence pursues a heroin kingpin who has a member of the team kidnapped.
Retired Commander Perry enlists Voight and the team to help extract his cop nephew from a unit of corrupt officers who are robbing drug dealers. When things go bad Voight must take down a ...
When multiple people are shot inside an athletic club intelligence work to find and take down the shooters before there are any more victims. When they discover that all the targets were ...
As District 21 is struggling to come to terms with the loss of one of the team they are forced to put their personal feelings aside when a café is bombed. The unit has several suspects and ...
Benson is in Chicago helping Intelligence with a rape/murder case similar to a case in New York from a decade ago, so she calls in Fin and Amaro for assistance.
A case involving one of Chicago's most wanted fugitives hits close to home with Olinsky; an altercation with another officer lands Sean Roman in hot water; Platt helps Nadia prepare for her polygraph test.
The investigation into a drug robbery gone wrong uncovers Voight's link to a missing teen; the real reason for Halstead's brother's visit becomes clear; and Platt cares for a young girl at district.
The death of a protester at a world trade event seems to point to an Argentine official. Halstead's brother arrives in town and is soon stirring up trouble.
Antonio heads undercover with a dangerous robbery crew after a narcotics officer goes missing. Commander Fischer updates Voight on a missing officer that Narcotics had deep undercover with ...
After they are kidnapped while tackling a dangerous smuggling operation, Roman and Burgess pursue a man without calling for backup. Intelligence are spending the day receiving taser certification.
Bunny comes to Lindsay concerned about a suspicious repeat customer at her husband's rental company. This lead brings Intelligence into a case which robbery-homicide has been working for ...
Antonio and his sister talk to Elliot Gish about the person they think is responsible for the fire that killed Shay; Lindsay has second thoughts about the task force; Platt's new, sunny demeanor results in curiosity.
Complicated clues surround the murder of a mother and her daughter. While, Lindsay prepares for an undercover investigation in Bolivia, and it dawns on Burgess and Roman that they need to put the past behind them.
Lindsay calls on Voight and his unit for help with her first case on the federal task force; Burgess is relegated to desk duty.
With Burgess (Marina Squerciati) in the hospital after suffering gunshot wounds, the intelligence team is determined to find the people responsible. Lindsay (Sophia Bush) delays her start ...
A huge drug bust puts Olinsky's family in danger. Meanwhile, the team digs up a common thread with the drug suspects, and Burgess and Roman are paired with a K-9 officer, who is Roman's former girlfriend.
Antonio gets caught off guard in fellow police officer Romine's security company; and word from above is he will lose his job if the case isn't solved in 2 days. The unit comes together to ...
The Chicago Intelligence Unit continues working with Special Victims Unit to take down a child pornography ring.
The murder of a 10 year old witness sends Atwater and Ruzek undercover as inmates in a federal prison.
Voight is attacked and abducted while trying to help his son's girlfriend.
Two teenage girls have gone missing and the team know the clock is ticking to find them. Halstead, Antonio and Lindsay investigate a tenement which gives them a much needed lead. Voight ...
The bounty on Halstead's head becomes a serious reality as an innocent bartender takes a bullet meant for him. Olinsky tries to reason with Bembenek to call off the hit, to no avail. Voight...
Intelligence begins to look into a string of murders where the victims have a dollar bill pinned to their chests. Thanks to some digging by Ruzek, Voight learns his friend was involved in ...
Sergeant Voight tries to find out who is behind the murder of Jin, and come up with the unbelievable discovery and learned that Sergeant Edwin Stillwell playing a double game with the ...
Atwater is settling into his new gig on intelligence as Antonio is relegated to desk duty while recovering. Lindsay finally realizes she has no way out and confides in Voight for help. ...
As Antonio's life is now in question, Voight and Platt open up about their pasts. Jin is caught while tinkering with Voight's computer and uses the only scapegoat possible to keep him in ...
Commander Perry notifies the Intelligence unit that Pulpo has been released to help track down a dangerous cartel leader. This doesn't sit well with our team as he kidnapped one of their ...
The Intelligence Unit race against the clock to find the bombers.
Voight and the team discover a massacre, eight million in cash stolen and two wounded men in a clearing house. During questioning, one guy, Perko, provides some intel that is key to the ...
Voight pulls Halstead's badge when Lonnie Rodiger is found dead. After a car accident, Kelly Severide and Peter Mills discover the torso of Dr. Elliot, who has been instrumental in putting ...
In responding to a call Atwater and Burgess discover a gunshot victim and the only witness is Lexi Olinsky. The shooting is tied to a Latin gang. To protect Olinsky's daughter, Voight takes...
Voight's new internal affairs officer is skeptical of his actions. Voight must now work with his ex-partner from the gang unit.
The Fitori murder case is brought to the intelligence unit and Voight's son, Justin, may be involved. Gradishar fills Antonio in on the arrangement between Internal Affairs and Voight which...
Voight and Antonio enlist the help of agents at the Special Victims Unit in New York, Fin and Rollins, to help track down the culprit of a series of rape/murders. Burgess has an opportunity...
Atwater and Burgess are given a new patrol car, but are challenged with keeping it brand new. A run in with a psychotic woman leads the Intelligence Unit to discover a drug smuggling ...
More is learned about Halstead's dislike of the Rodiger family and it's family relationships all around as Olinsky shows a paternal side with his daughter Lexi in an attempt to protect her ...
Voight and team head to a house that's been associated with a number of top gangs. Events at the search result in Ruzek, being encouraged to seek some counseling which may have lasting ...
Antonio's son was kidnapped and he has a feeling the Columbian drug gang is to blame. Pulpo, the Columbian gang leader, is being held in jail and suggests his release may trigger the ...
In the series premiere, after a slew of brutal slayings, District 21 led by Sergeant Hank Voight go after a Colombian drug cartel cleaning house in Chicago. They discover D'Anthony who ...