Officer John Nolan and Celina witness a shooting, realize the victim was already dead, and investigate further. Back at home, Bailey has been feeling off-center ever since the proposal, leaving Nolan to wonder what he can do to make her feel more comfortable. Elsewhere, Lopez and Harper enlist Lucy's help to investigate the gang-related cuddle of a local shopkeeper.
Starting over isn't easy, especially for small-town guy John Nolan who, after a life-altering incident, is pursuing his dream of being a Los Angeles police officer. As the force's oldest rookie, he's met with skepticism from some higher-ups who see him as just a walking midlife crisis. If he can't keep up with the young cops and the criminals, he'll be risking lives including his own. But if he can use his life experience, determination and sense of humor to give him an edge, he may just become a success in this new chapter of his life.