Bron never intended to move back to Australia. Wracked with guilt over her sister Libby's death, she's spent three months trying to handle her grief while taking care of Libby's young daughter, Annie.

Libby's best friend Ally never had a chance to say good-bye to her dear friend. When she finally returns home, Ally finds Libby's family open and welcoming...everyone, that is, except Libby's sister Bron.

For her part, Bron can't fathom why her family is so enamored with Ally—even offering her a job and a place to live—but grudgingly admires the way Ally and Annie get along.

While Bron contemplates moving Annie to Boston and away from the only home the little girl has ever known, bushfires begin to rage in the nearby mountains, and Bron begins to see that she's sorely underestimated her sister's friend.

Soon Ally's past and Bron's future collide—with a heat and wonder that neither of them expected.