When Jack is fourteen, his family moves from Sydney to the Blue Mountains to try to improve the health of Jack's nine-year-old sister, Anna. Jack attends boarding school in the city, but returns to the family home on holidays. While Jack and Anna have always been close, Jack finds himself growing very jealous when Anna becomes close friends with Harry, an Aboriginal man who is employed by the children's father as a 'manservant.' One holidays, Jack and his friend Willy amuse themselves by causing a lot of strife for Harry, and Jack's jealousy seems certain to come to a head. Soon after, Jack and Willy get lost in the bush. Will they ever make it home?