With Burgess (Marina Squerciati) in the hospital after suffering gunshot wounds, the intelligence team is determined to find the people responsible. Lindsay (Sophia Bush) ...

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, ...

Antonio gets caught off guard in fellow police officer Roman's security company; and word from above is he will lose his job if the case isn't solved in 2 days. The unit ...

The Chicago Intelligence Unit continues working with Special Victims Unit to take down a child pornography ring. ...

When a 10 year old girl is shot, the Commander tells Voight to work it. It seems like the girl was scheduled to testify against a kid who committed a crime. The kid is a ...

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 need ...

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, ...

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 frien ...

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 ...

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 Vo ...

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 possibl ...

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 kidnap ...

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 tha ...

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 instr ...

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 dau ...

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 Affai ...

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 ...

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 dr ...

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 atte ...

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 ma ...

Antonio's son was kidnapped and he has a feeling the Colombian drug gang is to blame. Pulpo, the Colombian gang leader, is being held in jail and suggests his release may ...

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 ...

A Metro cop in Washington, DC, finds a set of severed fingertips which prove to be those of a Marine corporal; Gibbs and company investigate; McGee finds the correspondin ...

Dr. Manning's actions with a recent patient lead to serious repercussions. April and Noah disagree over a patient who is injured after a beating. Dr. Charles is visited b ...

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the ...

The firefighters help the police track down a bombing suspect. ...

Truck and squad are called to aid in a massive all-city response when an old, ill-equipped factory-turned live/work space quickly turns into a firestorm, trapping countle ...

During a house fire, Firehouse 51 rescues the owner from the cellar clutching a suspicious box, leading Lt. Severide to bring in Sergeant Voight and Detective Lindsey for ...

Battalion Chief Boden prepares to counterattack McLeod in a final effort to save the firehouse from closure and the romance between Dawson and Casey escalates. Leon is ma ...