Nathan Fillion is The Rookie in the teaser trailer for new series

Starting over isn’t easy, especially for small-town guy John Nolan who, after a life-altering incident, is pursuing his dream of being an LAPD officer. As the force’s oldest rookie, he’s met with scepticism 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.

The ABC series stars Nathan Fillion (Firefly, Castle) as Nolan, Alyssa Diaz (Ray Donovan) as Angela Lopez, Richard T. Jones as Sgt. Wade Grey, Mercedes Mason as Captain Zoe Anderson, Afton Williamson as Talia Bishop, Melissa O’Neil as Lucy Chen, and Eric Winter as Tim Bradford.

There is no release date at the moment.