Episode 1 | Call It Macaroni

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 intention of getting out on the surface of the...

Episode 2 | Get My Cigarettes

A string of identical murders becomes personal when Voight's friend falls victim to the gunman.

Episode 3 | The Weigh Station

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 and the team keep this investigation in-...

Episode 4 | Chicken, Dynamite, Chainsaw

A clue leading Intelligence to the whereabouts of two missing teenage girls comes from an unlikely source close to the victim.

Episode 5 | An Honest Woman

Voight is attacked and abducted while trying to help his son's girlfriend.

Episode 6 | Prison Ball

The murder of a ten-year-old witness sends Atwater and Ruzek undercover as inmates in a federal prison.

Episode 7 | They'll Have to Go Through Me

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

Episode 8 | Assignment of the Year

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 two days. The unit comes together to try to solve the case and save their bro...

Episode 9 | Called in Dead

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.

Episode 10 | Shouldn't Have Been Alone

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 so she can help with this case. Search of ...

Episode 11 | We Don't Work Together Anymore

Lindsay calls on Voight and his unit for help with her first case on the federal task force; Burgess is relegated to desk duty.

Episode 12 | Disco Bob

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.

Episode 13 | A Little Devil Complex

Antonio and his sister talk to Adrian 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.

Episode 14 | Erin's Mom

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 months. Detective Gina Gawronski downloads ...

Episode 15 | What Do You Do

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.

Episode 16 | What Puts You on That Ledge

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 a robbery crew. Antonio connected with on...

Episode 17 | Say Her Real Name

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.

Episode 18 | Get Back to Even

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.

Episode 19 | The Three Gs

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.

Episode 20 | The Number of Rats

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.

Episode 21 | There's My Girl

Intelligence investigates the bombing of a trendy cafe and the district pays tribute to one of their own.

Episode 22 | Push the Pain Away

A mass shooting sends Intelligence racing to stop a group of highly motivated killers from striking again.

Episode 23 | Born Into Bad News

Voight comes up against a younger, more violent version of himself while trying to extract Commander Perry's nephew from a unit of corrupt officers.