Chicago PD is back with its season 13 in October 2025. It's episode 4, titled "Root Cause", is dropping on Wednesday, October 22, 2025, on NBC. All the episodes follow the set weekly release schedule, dropping every Wednesday. The last episode was full of mystery and personal reflections for Burgess and Ruzek with a 19-year-old girl found dead in their neighborhood. This made Burgess question the environment her daughter Mac is in. Mac is a black child who lives within a white community, and Burgess is afraid that one day she is going to feel like an outsider.
After the cops find the real killer behind Sasha's murder, the concern grows even stronger as the killer turns out to be Sasha's best friend and cop Frank Walsh's daughter, Lily. Episode 4 is expected to continue the thrill with another new case for the department to solve. Read on to know the complete streaming schedule of Chicago PD season 13 episode 4.
Chicago PD Season 13 Episode 4: Release date and streaming schedule explored
As mentioned, the show's season 13, episode 4 is dropping on October 22, 2025, at 10:00 PM ET / 9:00 PM CT on NBC. The episode follows the weekly release schedule, dropping every Wednesday. Peacock will host the episodes for streaming the day after they air. The synopsis of episode 4, as per IMDb, reads,
"A string of violent robberies across the city digs up one family's secrets; a surprising detail of Voight's past resurfaces."
This suggests that the next episode isn't going to be just another external case but will link to the members within the department and the head of the intelligence unit itself. The synopsis also gives us a hint that the next case would be of several "violent robberies" that the cops would need to solve while carving out some secrets related to a single family. It is only to be seen how all of this would be interlinked and affect Voight's life.
Cast list of Chicago PD season 13, episode 4 explored

Sergeant Henry “Hank” Voight is portrayed by Jason Beghe, and the actor has been praised for his role, given his layered character, breaking the typical image of a "dirty cop". Alongside him, the episode features an ensemble of brilliant cast members. With the regular faces of the cops come the new faces of the characters involved in the ever-changing cases. Patrick Flueger appears as Officer Adam Ruzek, Marina Squerciati appears as Detective Kim Burgess, and LaRoyce Hawkins as Officer Kevin Atwater. Arienne Mandi is Officer Naomi Kerr, and Amy Morton is Desk Sgt. Trudy Platt.
Some new faces include Omar Aragones as Steve Perez, Barry Del Sherman as Raymond Bell, Sean Bradley as Bob and Charlotte White as Sage, Jessica Goforth as Desk Manager, Julianna Layne as Julie Bell, and Kianna Rose as Tara Gainz.
All the episodes of all the seasons of Chicago PD can be streamed on Peacock. Catch the show now.