[s1e4] One Minute May 2026

: The episode features a lighter—yet still intense—moment where Herrmann’s temper flares during a rescue at a Halloween block party. Key Themes & Symbols

This episode was written by and directed by Gloria Muzio . Lt. Matthew Casey Jesse Spencer Lt. Kelly Severide Taylor Kinney Battalion Chief Wallace Boden Eamonn Walker Paramedic Gabriela Dawson Monica Raymund Detective Hank Voight (Guest) Jason Beghe Why This Episode Matters [S1E4] One Minute

: Detective Hank Voight (played by Jason Beghe) escalates his intimidation tactics against Lieutenant Matthew Casey. Voight is desperate to stop Casey from testifying against his son, Justin, following a drunk-driving accident that paralyzed another person. Personal Struggles : Matthew Casey Jesse Spencer Lt

: While on a call, Shay is forced to confront her past when she ends up face-to-face with her ex-girlfriend, Clarice, and Clarice’s husband. Personal Struggles : : While on a call,

For more details on the production, you can check out the full cast and crew on IMDb or the episode's entry on the One Chicago Wiki . Casey rivalry ?