Season 4 of Chicago P.D. originally aired on NBC from September 21, 2016 to May 17, 2017. This season consisted of 23 episodes.
Cast
Main
- Jason Beghe as Sergeant Hank Voight
- Jon Seda as Detective Antonio Dawson
- Sophia Bush as Detective Erin Lindsay
- Jesse Lee Soffer as Detective Jay Halstead
- Patrick John Flueger as Officer Adam Ruzek
- Marina Squerciati as Officer Kim Burgess
- LaRoyce Hawkins as Officer Kevin Atwater
- Amy Morton as Desk Sergeant Trudy Platt
- Elias Koteas as Detective Alvin Olinsky
Recurring
- Samuel Hunt as Greg Gerwitz
- Barbara Eve Harris as Commander Emma Crowley
- Markie Post as Barbara "Bunny" Fletcher
- Chris Agos as Assistant State's Attorney Steve Kot
- Esai Morales as Chief Lugo
- Nick Wechsler as Detective Kenny Rixton
- Li Jun Li as Officer Julie Tay
- Jules Willcox as Nicole Silver
- Kevin Kane as Officer Mike Sorensen
- Ian Bedford as Commander Ed Fogel
- Tony Crane as Jimmy Sanguinetti
- Tracy Spiridakos as Detective Hailey Upton
Special Guest Cast
- Billy Burke as Jake McCoy
Crossover Cast
- Chicago Fire
- Chicago Med
- Chicago Justice
- Carl Weathers as State's Attorney Mark Jefferies
- Philip Winchester as Assistant State's Attorney Peter Stone
- Jon Seda as Chief Investigator Antonio Dawson
- Monica Barbaro as Assistant State's Attorney Anna Valdez
Episodes
| No. | Episode | Summary | Air date |
|---|---|---|---|
| 4x01 62 |
The Silos |
Voight continues to grieve following his son's death. Lindsay tries to keep quiet about her knowledge of what happened between Voight and Justin's killer, and an internal investigation by the CPD is conducted. Meanwhile, the Intelligence unit investigates an arson case which later turns to murder, and Burgess meets her new partner Julie Tay. | September 21, 2016 |
| 4x02 63 |
Made a Wrong Turn |
On the hottest day of the summer, the Intelligence unit investigates the case of a missing woman in a notorious African American neighbourhood. Meanwhile, Platt is threatened by Commander Fogel over her decision to have Tay reassigned to the 21st District, and Mouse announces his plans to reenlist in the Army Rangers. | September 28, 2016 |
| 4x03 64 |
All Cylinders Firing |
The Intelligence unit investigates after Platt is attacked while walking to her car. As the investigation develops, the unit finds Platt's father beaten to death and that his much younger girlfriend may have been involved. Meanwhile, after Burgess lets a key piece of case information slip, Platt escapes the hospital to find her own justice for her father. | October 5, 2016 |
| 4x04 65 |
Big Friends, Big Enemies |
The Intelligence unit investigates a drive-by shooting that killed a local rap star. Voight initially suspects a terrorist group may be involved, but after a second shooting in gang territory, the unit considers the possibility that both crimes are part of a gang war. Meanwhile, Burgess spots Atwater's younger brother while out visiting potential shooters and targets. | October 12, 2016 |
| 4x05 66 |
A War Zone |
The Intelligence Unit investigates after a body and a bag full of fentanyl, a drug that has been linked to a string of overdoses throughout Chicago, wash ashore. Meanwhile, Platt informs Tay that she has been reassigned to her original post, and Mouse causes tension within the unit as he continues to try and have a felony charge dropped so he can reenlist in the Army. | October 26, 2016 |
| 4x06 67 |
Some Friend |
Burgess and new partner Officer Sorensen respond to a noise complaint from a house, only to find a dead teenage girl inside. The unit investigates the murder, which turns out to be the home of famous local baseball player Jake McCoy, who happens to be an old friend of Olinsky's. After Lindsay mysteriously receives an arrangement of daisies, Halstead tracks them to a florist near Leavenworth Penitentiary, a prison which Erin reveals her father has served time in. | November 9, 2016 |
| 4x07 68 |
300,000 Likes |
The unit investigates the murder of a key witness in an ongoing high profile rape trial. After pulling over an erratic driver, Burgess and Sorensen find the driver wearing a skirt, fishnet stockings and a chastity belt, recording it on their body cams. Sorensen later posts the video to his Facebook account. Meanwhile, Antonio is offered a lead investigator job at the attorney's office by Peter Stone. | November 16, 2016 |
| 4x08 69 |
A Shot Heard Around the World |
The Intelligence unit deals with a highly trained sniper who has targeted and killed two patrol officers. Meanwhile, having accepted Stone's job offer, Antonio deals with the aftermath of telling the team. Later at Antonio's farewell party, Voight offers Burgess a position in Intelligence. Also, Bunny drops a bombshell on Lindsay: her biological father is in town and wants to meet her. | November 16, 2016 |
| 4x09 70 |
Don't Bury This Case |
Severide is accused of a hit-and-run accident, which later turns into a vehicular homicide when one of the victims, a child, dies from her injuries. Lindsay and Voight suspect that Severide was set up while friendships and relationships are put to the test as the detectives and cops are forced to toe a very thin line with their friends at Firehouse 51 as the evidence against Severide mounts. Meanwhile, Burgess begins her first day in Intelligence and immediately clashes with Olinsky. Also, Lindsay contemplates meeting her father. | January 3, 2017 |
| 4x10 71 |
Don't Read the News |
The Intelligence unit investigates the murder of a young woman, and later discovers that her murder may be connected to a potential serial killer who has murdered more than 10 women. Meanwhile, Voight introduces Kenny Rixton (guest star Nick Wechsler) to the unit as a temporary replacement for Ruzek while he is on an undercover assignment, and Lindsay finally meets her biological father. | January 4, 2017 |
| 4x11 72 |
You Wish |
When a mutilated sex offender is found dead, it is unclear if he was the victim of a hate crime, sexual assault or self-mutilation. As Intelligence questions those related to the case, they find themselves up against a private "special police" force who may be covering up illegal activities. Meanwhile, Halstead runs Jimmy's DNA to confirm that he is actually Lindsay's father. | January 11, 2017 |
| 4x12 73 |
Sanctuary |
The investigation of a jogger's murder in the park is blocked by a church offering sanctuary to the prime suspects. Rixton is caught in a lie with Voight. | January 18, 2017 |
| 4x13 74 |
I Remember Her Now |
The body of a 15-year-old girl is found crushed in an abandoned building, after she runs away from a treatment center for troubled girls. Voight sends Halstead undercover as a guard to work from the inside at the center, where he believes the girls are trading sexual favors for something in return. Meanwhile, Platt feels guilty because the victim was brought into the District last year, and Platt doesn't remember her. | February 8, 2017 |
| 4x14 75 |
Seven Indictments |
When a charred body is found in a torched house, Intelligence must work to identify the victim, as well as a young boy who is found badly injured inside. As they look to determine the cause and who may have been involved, they are faced with a web of secrets and lies. Meanwhile, Lindsay and Halstead receive an odd warning about Rixton that leaves them suspicious. | February 15, 2017 |
| 4x15 76 |
Favor, Affection, Malice or Ill-Will |
When Lindsay is tipped off about a grieving father looking to avenge his daughter's death, Olinsky goes undercover as a hitman-for-hire. With Gang Intelligence lacking enough evidence to arrest the original gangbanger in question, the team works to reinvestigate the case. Meanwhile, Ruzek comes back after finishing his undercover assignment only to have Voight knock him down to patrol duty. | February 22, 2017 |
| 4x16 77 |
Emotional Proximity |
Olinsky's daughter is in critical condition following a massive warehouse fire. Voight investigates the fire's potential origins while Intelligence examines connections between the building owner, those who were inside and potential arson suspects. | March 1, 2017 |
| 4x17 78 |
Remember the Devil |
The Intelligence unit investigates a woman being held captive in a shipping container who refuses to help find the suspect involved. When a video goes viral, the team realizes that there is a second hostage, and they race against time to find her Meanwhile an ex-girlfriend of Halstead's turns up in Chicago and drops the bombshell that they are still married, and Olinsky returns to work following his daughter's death. | March 22, 2017 |
| 4x18 79 |
Little Bit of Light |
The squad deals with an upsetting case. Erin and Jay work through some difficulties in their relationship. Kim deals with personal issues when her sister, Nicole, arrives with some unexpected news. | March 29, 2017 |
| 4x19 80 |
Last Minute Resistance |
After a night out with friends, Burgess' sister Nicole is drugged and sexually assaulted. The Intelligence unit bands together to investigate the brutal attack, and soon find one of Nicole's friends is missing, only to later be found dead, having escaped the men who took both women. Lindsay and Burgess head undercover to draw out the suspects, and when one of the suspects tries to assault Burgess, the rest of the team move in to make an arrest. Later, Burgess takes temporary leave from Intelligence to care for her sister. | April 5, 2017 |
| 4x20 81 |
Grasping for Salvation |
When a teenage boy is shot dead, the Intelligence unit begins to investigate, soon discovering the gun recovered is the same gun used in a case Voight investigated 17 years earlier. As the victim's father, a prominent lawyer, tries to get the case taken from Intelligence, Voight digs into his past case, becoming suspicious of his old partner. As both Intelligence and Voight close in on the truth, Voight's ex-partner puts him up in front of the review board for disobeying direct orders. | April 26, 2017 |
| 4x21 82 |
Fagin |
When the team is called to an in-progress bank robbery, they come across Detective Hailey Upton trying to take over the crime scene with her Robbery-Homicide unit - butting heads with Voight in the process. As the robberies continue to be executed around the city, Lindsay is forced to make a decision in the heat of the moment, revealing a surprising suspect behind the mask. While working on the case at the district, Upton is shocked to come across Platt, who has a special connection to her past. | May 3, 2017 |
| 4x22 83 |
Army of One |
A live video is streamed online showcasing a tortured man being beaten and burned alive. Upon further investigation, the victim's identity is traced back to that of a man who had been previously locked up for statutory rape. When another attack of a similar nature occurs, Intelligence finds a connection between the crimes, suspected pedophiles, and group named the Perv Hunters. Meanwhile, Lindsay runs into a few bumps in the road - both personally and professionally. | May 10, 2017 |
| 4x23 84 |
Fork in the Road |
Lindsay's mother, Bunny, becomes a murder suspect when her boyfriend is shot; high school students overdose on drugs; Lindsay finds herself up against the review board. | May 17, 2017 |
Crossovers
A crossover starting on Chicago Fire and concluding on Chicago PD aired on January 3, 2017.
- Chicago P.D. - Season 4 Episode 9 - Don't Bury This Case
- Chicago Fire - Season 5 Episode 9 - Some Make It, Some Don't
A three-way crossover between Chicago Fire, Chicago P.D. and the premiere of Chicago Justice aired on March 1, 2017, with heavy involvement from Chicago Med.
- Chicago Fire - Season 5 Episode 15 - Deathtrap
- Chicago P.D. - Season 4 Episode 16 - Emotional Proximity
- Chicago Justice - Season 1 Episode 1 - Fake
Production
Casting
Li Jun Li joins the cast as Officer Julie Tay for a three episode guest spot. She is set to replace Brian Geraghty's character Officer Sean Roman as Officer Kim Burgess' (Marina Squerciati) partner, after he left the series at the end of last season. On September 28, it was reported that Jon Seda as character Antonio Dawson would move from P.D. to Justice, where Antonio will become an investigator for the SA's office. It was further reported on October 5 that Seda's last episode of P.D. will be episode 8.
Nick Wechsler joins the cast as Kenny Rixton, a former protégé of Voight's, for a multi-episode arc. On February 7, 2017, it was revealed that Esai Morales will join the cast as Chief Lugo, a veteran of the Police Department who is trying to steer the CPD into a new style of policing. His first appearance will be in the three-way crossover with Chicago Fire and Chicago Justice, before recurring throughout the remainder of the season.
Set to recur as Hailey Upton, a robbery homicide Detective, Tracy Spiridakos joins the cast, with her first episode slated to air in early May. Squerciati took maternity leave from the show in March 2017, and Kim made her temporary departure in "Last Minute Resistance". [1]
Gallery
.jpg "Chicago PD Season 4 Poster 1 (Landscape).jpg (88 KB)")
DVD Release
The DVD release of season four is set to be released in Region 1 on September 12, 2017.