Eager rookie officers strive to make their mark in their demanding careers, where even minor errors can lead to fatal outcomes. Central to this tight-knit team is Andy McNally, a perfectionist whose father, a former homicide detective, succumbed to job-related burnout. The series chronicles the journey of Andy and her four fellow officers—Dov Epstein, Gail Peck, Traci Nash, and Chris Diaz—as they navigate the challenges, victories, and struggles of police work and its impact on their personal lives.