|A War Zone|
|Season 4, Episode 5|
|Airdate||October 26, 2016|
|Written by||Tiller Russell|
|Directed by||Eriq La Salle|
Big Friends, Big Enemies
A War Zone is the fifth forth episode of the forth season and the 66th overall episode of Chicago P.D.
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.
- 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
- Elias Koteas as Detective Alvin Olinsky
- Amy Morton as Desk Sergeant Trudy Platt
- Li Jun Li as Julie Tay
- Brendan Dooling as Scott "Scoot" Fitzgerald
- Marcus Giamatti as Jerry
- Abraham Lim as Tony Chin
- Leo Lee as Walter Ng
- Zachary Hernandez as Chase
- Kevin Hope as Red
- Pat Parks as Theresa Clarendon
- Jennie Sophia as Leigh Crewes
- David Alan Anderson as Sgt. Martinez
- Miguel Lepe Jr. as Attendant
- Sally Elting as Sadie
- Adam Poss as Paramedic Adam
- Monette McLin as Nurse
- Meighan Gerachis as Forensic Officer
- Tae Chourb as Bodyguard #1
- Keiji Asada as Bodyguard #2
- Jason Uzarraga as Bodyguard #3
Voight: (pulling a marked $20 bill off a busted dealer) The mustache on Jackson, I drew it.
Burgess: Why would somebody stab their husband, and then go to class?
Platt: Because some people are crazy, Burgess.
Halstead: Him going back is not the right move for him.
Lindsay: For YOU, him going back is not the right move for YOU. But if it was you, if you wanted to go back, would you let ANYBODY get in your way?
Burgess: And this is Sergeant Platt, the one I told you about.
Platt: You a Hawks fan?
(Chase nods, she holds up a team sweatshirt)
Platt: Good, because I need a Wingman to watch the game for me while I'm chained to this desk, can you do that for me?
Voight: ( Mouse) Not doing your job isn't working for you either.
Halstead: (to Voight) I talked to him.
Voight: (to Halstead) I'm not talking to you.