Season 4 Episode
- Season 4 Jack's Back
- Season 4 The Devil You Know...
- Season 4 Free Byrd
- Season 4 The Kindness of Strangers
- Season 4 Blind Eye
- Season 4 Jupiter for Sale
- Season 4 A House Divided
- Season 4 Acceptable Losses
- Season 4 In God We Trust
- Season 4 Hollow Spaces
- Season 4 The Voice Inside
- Season 4 Breath of Life
- Season 4 Party Favors
- Season 4 a.k.a.
- Season 4 D.C. Confidential
- Season 4 On Guard
- Season 4 Family Values
- Season 4 The Black Widow Maker
- Season 4 Passing Time
- Season 4 Ten Thirty-Three
- Season 4 Open Season
- Season 4 Something Borrowed, Something Bruised
The District - Season 4 Episode 16 On Guard
6.80 44 minutes Mannion wants to believe that it was self-defense when his attractive fencing teacher's husband is killed at her studio. Meanwhile, Debreno recognizes a suspect in a drug case as his childhood friend who convinced Debreno to go into the Police Academy.
