Harry and Miles live with their father, an abalone fisherman, on the south-east coast of Tasmania. With their mum dead, they are left to look after themselves. When Miles isn't helping out on the boat they explore the coast, and Miles and his older brother, Joe, love to surf. Harry is afraid of the water. Everyday their dad battles the unpredictable ocean to make a living. He is a hard man, a bitter drinker who harbours a devastating secret that is destroying him. Unlike Joe, Harry and Miles are too young to leave home and so are forced to live under the dark cloud of their father's mood, trying to stay as invisible as possible whenever he is home. Harry, the youngest, is the most vulnerable and it seems he bears the brunt of his father's anger.