Former Navy SEAL Peter "Grunge" Greene's lonely but comfortable life is upended when his longtime ex-girlfriend unexpectedly dies in a car crash, leaving him sole custody of their 15-year-old daughter, Maddie. They move to San Diego to start a new life together, but Maddie quickly falls in with the wrong crowd and soon goes completely AWOL. New to town with no one to turn to, Peter is frantic to track down his daughter and accepts help from his beautiful and surprisingly resourceful neighbor, Shayla Whitman. A romance writer and single stay-at-home mom, Shayla deeply empathizes with Peter's predicament, and a bond quickly grows between them over their shared experiences as parents but blossoms into much more. As things heat up between Peter and Shayla, it's a race against time for Peter and the Troubleshooters team to find Maddie before she makes a mistake she'll forever regret.