A junior fiction series for boys about a local boys' rugby league team who get special coaching and advice from star NRL player Billy Slater. Junior is the youngest player for the West Hill Ravens. He is also the biggest. Everyone on the team starts to call him Cannonball because, when he makes a bust, he's virtually unstoppable. Even though Junior is helping his team score more tries than ever, no one seems to be able to see past his size. When team mentor, Billy Slater, sets the Ravens a challenge, Junior's bad feeling gets even worse. Will Billy be able to help Junior prove there is more to him than meets the eye?