SWAT sniper Jake Denton and his wife, his department-ordered psychiatrist, are beginning to question just how these sanctioned kills are affecting Jake’s mental health. Nobody wants him to end up like Lee Staley, his mentor and ex-partner --- now out on permanent psych leave and the prime suspect in a series of shootings that have paralyzed Northern California. Jake doesn't believe that Staley is guilty, but when their job has taught them to kill, how easy would it be for his friend to cross over to the other side? How easy would it be for Jake?