One Chicago & FBI Wiki
One Chicago & FBI Wiki
Season: 4
Episode: 2
Original airdate: September 28, 2021
Written by: Claire Demorest
Directed by: Jean de Segonzac
Episode chronology
Previous episode: All That Glitters
Next episode: Trauma


Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals, while demanding a full investigation into the recently deceased patients of a local psychiatric facility. With Jubal’s son waiting for important surgery at one of the impacted hospitals, Jubal’s adamant about remaining involved in the case despite Isobel’s reservations.


Main Cast

Guest Stars


  • Anthoula Katsimatides as NSA Rep Sarah
  • Jessica Angelskhan as Doctor Phillips
  • Chris Russell as NYPD Detective Banks
  • Caleb Reese Paul as Tyler Valentine
  • Desiree Rodriguez as Nurse
  • Philip Martin Reid as Greg
  • Logan Riley Bruner as Peter Bryson
  • Jennifer Laine Williams as Mother


  • Dick Wolf as Creator
  • Craig Turk as Creator
  • Dick Wolf as Executive Producer
  • Rick Eid as Executive Producer
  • Alex Chapple as Executive Producer
  • Arthur W. Forney as Executive Producer
  • Peter Jankowski as Executive Producer
  • Joe Halpin as Co-Executive Producer
  • Keith Eisner as Co-Executive Producer
  • Zach Calig as Supervising Producer
  • Anastasia Puglisi as Supervising Producer
  • Amanda Slater as Producer
  • Joe Webb as Producer
  • Alec Chorches as Producer
  • Rachel Cates as Co-Producer
  • Claire DeMorest as Co-Producer
  • Kristy Lowrey as Co-Producer
  • Jonathan Strauss as Co-Producer
  • Bart Tau as Director Of Photography
  • Malchus Janocko as Production Designer
  • Chris Conlee as Editor
  • Atli Örvarsson as Music
  • Jonathan Strauss as Casting
  • Heather Michaels as Story Editor

Background information and Notes


FBI season 4
Episodes All That GlittersHacktivistTraumaKnow ThyselfCharlotte's WebAllegiance
Other Seasons Season 1Season 2Season 3