Third-generation firefighter Captain Ben Libby is sworn to keep Harmony Valley safe, but a recent series of fires point to arson. Not that Ben really suspects Mandy Zapien, who's back in town to reopen the defunct post office-- a potential fire hazard. Turns out Ben and Mandy have a lot in common. They're both trying to rebuild their lives. Mandy's raising her teenage sister, just as Ben's devoted to his godchild. Though lately, he's started to suspect she's his biological daughter. Amid secrets and family dramas, do Ben and Mandy have what it takes to go the distance together?