Saying it is a heavy watch would be an understatement. Not only will the show fuel you with anger, it will not help you calm down by the end.
Showing the grim reality of the broken military system, sprinkled with comedy, made this quite an emotional ride. We are shown how a few good people are not enough to fix the environment where bad behavior is rewarded.
While it was amazing to watch the main characters trying to make even small changes, at some point they've hit the wall and needed to face the reality of how powerless they are - how they are also part of the problem. We follow a patient and introverted Joon Ho and confident and street smart Ho Yul, as they try to find and bring back defectors. During their job they face a lot of issues ranging from external issues like unsupportive and corrupted superiors to internal struggles revolving around morality and their own principles.
Warning needed - D.P. is filled with abuse, both physical and emotional, and justice is usually not served. The drama shows how it is, without trying to make the topic more approachable and easy to digest. You will be left with building up frustration, and yet glad, you decided to watch it till the end.

The cast did an amazing job. Everyone delivered both the emotional and the comedic parts well. I laughed, cried, shouted with anger. Biggest props to Koo Kyo Hwan for his portrayal of Ho Yul. Outstanding performance that made me fall in love with the character.
The production and the writing left nothing to desire. Mixing the tragic aspects of reality with well fitted comedic bits was done in a good taste, not taking away from the serious topic tackled.
Overall, one of the best shorter dramas of 2021.
Not an easy watch, might be too much for some people - was almost too much for me. It won't leave you on a hopeful note, but it is a story worth witnessing....