If you are looking for the classic anthology series, this episode (sometimes cataloged as "Officer Down" in certain regions or archives) focuses on the strain of the job.
Since " Officer Down " is a common title for crime dramas, there are two primary shows you might be referring to for . Blue Bloods: "Officer Down " (S1, E4) [S1E4] Officer Down
: One officer begins acting erratically, leading to a tense situation where the bond of the "partnership" is tested by psychological stress and external violence. If you are looking for the classic anthology
: Two partners who have worked together for ten years start to grate on each other's nerves. : Two partners who have worked together for
For a deeper look into the intense hunt for a cop killer, you can watch the overview of the PD True episode on this subject: