Starting over isn't easy, especially for small-town guy John Nolan (Nathan Fillion) 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.
Nolan becomes a target after his arrest of a gang member leads to a free-for-all on his life.
A massive earthquake rocks the city and throws everyone's patrols and its citizens into chaos.
Sgt. Gray informs the rookies that they must track down a specific set of crimes in 48 hours.
Nolan and Bishop are called to the scene of a murder that may be tied to a terrorist attack.