Joe, Miles, and Harry are growing up on the remote southern coast of Tasmania--a stark, untamed landscape swathed by crystal blue waters. The rhythm of their days is dictated by the natural world, and by their father's moods. Like the ocean he battles daily to make a living as a fisherman, he is wild and volatile--a hard drinker warped by a devastating secret. Unlike Joe, Harry and Miles are too young to move out, and so they attempt to stay as invisible as possible whenever their father is home. Miles tries his best to watch out for Harry, but he can't be there all the time. Often alone, Harry finds joy in the small treasures he discovers by the edge of the sea--shark eggs, cuttlefish bones, and the friendship of a mysterious neighbor. But sometimes small treasures, or a brother's love, simply are not enough...