Chicago P.D.'s Intelligence Unit, led by Sgt. Hank Voight, investigates the city's most formidable offenses, but as they seek truth, Voight must adapt to a transforming criminal justice system in the midst of change.
With the suspects still at large and conditions worsening underground, first responders race against the clock to reach the trapped victims, while the investigation into the assailants comes into focus.
Voight questions Deputy Chief Reid's motives in enacting a Violence Reduction Initiative across a neighborhood where numerous gangs are fighting for territory.
The search for the suspect in a shooting uncovers a surprising personal connection to Atwater and Val, raising questions about their relationship status.
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.
Closure
S9 E1
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 decision; Ruzek struggles with the pressure of the situation.
Rage
S9 E2
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.
In the Dark
S9 E4
When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path.
Burnside
S9 E5
As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.
End of Watch
S9 E6
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.
Trust Me
S9 E7
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.
Fractures
S9 E8
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.
A Way Out
S9 E9
With the FBI closing in on the Roy Walton investigation, Voight and Halstead strategize a way out; after a city bus driver is shot by a passenger, the team investigates a possible abduction.
Home Safe
S9 E10
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.
Lies
S9 E11
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.
Due Process
S8 E12
The team pursues a crafty serial rapist; Sgt. Voight finds himself resisting some old, familiar tendencies in his quest for justice.
Trouble Dolls
S8 E13
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 Right Thing
S8 E15
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.
The Other Side
S8 E16
Voight and the team muster all their expertise to bring down a deadly crime ring; Burgess finds herself in a dangerous situation.
Called in Dead
S2 E9
Following a big heroin bust, Olinsky learns that the suspects are holding his wife hostage; Burgess and Roman get an assignment that pairs them with a K-9 officer: Roman's former partner (Spencer Grammer).
Shouldn't Have Been Alone
S2 E10
The intelligence team works to find those responsible for Burgess' wounds; a search of the house provides valuable information.
We Don't Work Together Anymore
S2 E11
Lindsay calls on Voight and his unit for help with her first case on the federal task force; Burgess is relegated to desk duty.
Disco Bob
S2 E12
Ruzek's father (Jack Coleman) is first on the scene of a double murder; Lindsay prepares for an undercover investigation in Bolivia; Roman and Burgess try to move forward.
A Little Devil Complex
S2 E13
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.
Erin's Mom
S2 E14
Bunny comes to Lindsay with a concern that leads the team to a case that robbery-homicide has been investigating; Voight is suspicious of Bunny's motives.
What Do You Do
S2 E15
Burgess and Roman become trapped after Burgess pursues suspicious activity at a convenience store without calling in for backup; the intelligence team receives taser certification.
Say Her Real Name
S2 E17
The members of intelligence go under cover at a World Trade conference to assess political threats; Halstead's brother immediately stirs up trouble when he shows up in town.
Get Back to Even
S2 E18
An investigation into a drug robbery gone wrong reveals Voight has ties to a teen linked to a double murder; Desk Sgt. Platt cares for a young girl.