Darwin, 1942. As Japanese bombs rain down on her hometown, newly orphaned Molly Hook looks to the skies and runs for her life. Inside a duffel bag, she carries a stone heart and a map that will lead her to Longcoat Bob, the deep-country sorcerer whom she believes cursed her family. Accompanying her are the most unlikely traveling companions: Greta, a razor-tongued actress, and Yukio, a Japanese fighter pilot who's abandoned his post. With messages from the skies above to guide them towards treasure, but foes close on their trail, the trio will encounter the beauty and vastness of the Northern Territory and survive in ways they never thought possible.