Ensor is no ordinary cop. He’s a hero, winner of the Medal of Valor, devoted family man and coach, helping at-risk kids. But the driver who struck him down and didn’t stop isn’t ordinary either. He’s Judge Frank Stevenson, up-and-coming member of the bench, also devoted to his wife and daughter, involved in charities and good works. In a split second he did something completely uncharacteristic that irrevocably changes his life and the lives of everyone close to him. Terry Nye is a couple of weeks from retirement as a detective, head of Major Crimes. He’s trying to pack thirty years of bloody experiences and hard lessons into those two weeks for his new partner, Rose Tafoya. Rose is a young detective, smart, more than a little ambitious, but also insecure. Together she and Nye are a powerhouse team. He’s determined to find Ensor’s assailant and he’s going to make sure Rose doesn’t make the same mistakes he did, especially the unforgivable one that has come back to darkly haunt him after Ensor’s accident. With the city in turmoil after Ensor's death, the hunt for the cop killer rushes ahead relentlessly. The guilty and innocent are sucked into the intense investigation—and everyone will realize that their lives can change in the blink of an eye.