Sniper Standoff(2013)

Sniper Standoff is a crime thriller series that follows Lee Ho-yeung, a sniper whose failed police operation sparks a bitter feud with his partner Ko Chun-kin. Leaving the force, Ho-yeung becomes president of a firearms association while secretly colluding with organized crime—all to orchestrate his revenge. He manipulates a detective and exploits his girlfriend's position within the police unit, keeping Chun-kin unaware of his betrayal. When Chun-kin begins connecting clues across multiple murders, the two former brothers-in-arms find themselves locked in a dangerous standoff. Trust shatters as hidden agendas surface, and personal vengeance threatens to consume them both.