On a cross-country trip to find their estranged father, brothers Carter (Adam Rothenberg) and Ellis (Ethan Peck) -- whose life is on the line -- meet waitress Krystal (Mariah Carey). The aspiring singer decides to drive the brothers to Nashville in hopes of jumpstarting her career. The trio becomes a united front as Krystal's husband pursues them, Ellis's health worsens, and Carter relives the painful past he and Ellis left behind.