Kaylee Frye crash lands and is stranded on a now decimated colony world on the outer rim of the solar system along with her crew-mate, River Tam. River's full of mysteries, and haunted by the darkness in her past. Kaylee's shy of her and doesn't really trust her at first, even though they're friends. That changes over time though, as Kaylee learns she can depend on River when it counts. An understanding builds between them, and, before Kaylee really realizes it's happened, she finds she's fallen in love.