Dillon and his brother Ryan find a cattle dog in town that has hurt his leg and decide to take him to the nursing station for first aid. They know Mum wont take him in because she is still upset about losing the family dog, Buster. The stray dog needs an operation, and the boys try to earn the money to pay for it. When it looks as if they can claim him for themselves, the owner comes back. But it looks as if this working dog may be ready to retire ...