Karli and Jenna are half sisters, and their mom is rock legend Nicole Razor, who just passed away. In a rush to be by her bedside, they've ended up at a train station in Barinya Downs, a place with just one solitary house in the distance. While they wait for the next train, they find themselves guests of Riley Jackson, an unassuming cowboy who's exiled himself and is doing the jobs nobody else wants. Can the daughters of rock royalty harmonize with the country song in this cowpoke's heart?