|Season unknown, Episode unknown|
|Air date||March 19, 2017|
|Written by||Richard Sweren & April Fitzsimmons|
|Directed by||Stephen Cragg|
Friendly Fire is the fifth episode of the first season and the 5th overall episode of Chicago Justice.
The team investigates the brutal murder of a Navy SEAL veteran. Stone and Valdez discover at the autopsy that the victim ingested a flash drive containing classified information about a botched Navy mission in which he was involved. Jeffries, a military veteran, forbids Stone from using the video as evidence, causing friction between the two.