Based on a true story, the primetime series for ABC (USA) stars Nathan Fillion (Castle, Firefly, Modern Family), as John Nolan, the oldest rookie in the LAPD. At an age where most people are at the peak of their career, Nolan casts aside his comfortable, small town life and moves to L.A. to pursue his dream of being a cop. Nolan, surrounded by rookies twenty years his junior, must navigate the dangerous, humorous, and unpredictable world of the streets of L.A. as he makes his second shot at life count.