A missing mother. A lost inheritance. And an unexpected connection that could change everything.

Tarragon Archer loves her job at the Tombstone post office, but when her new boss demands she learn Morse code or lose her position, she's in over her head. Enter Matthew King, a Colorado reporter with his own problem: he's been searching for his estranged mother for over a year in hopes of claiming his family's mine—but all his letters have gone unanswered.

Tarra has been holding onto Matthew's letters, feeling guilty that his mother can't be found. When her father suggests a trade, a partnership forms: Tarra will help Matthew navigate Tombstone and find his mother, and in return, Matthew will teach her Morse code.

As they work side by side, their professional agreement turns into something deeper. But with Matthew's mother at the heart of his quest, will finding her bring him closure—or will it drive him and Tarra apart?