Buddy starts out as an abused Golden retriever with a psychopathic clown for an owner. Soon, he is abandoned, and wanders into the next town, where Josh Framm, his widowed mother, and his sister Andrea have just settled in.
Josh starts out struggling in school. While playing basketball one afternoon, he finds Buddy outside. Josh is astoonished when Buddy steals the ball from him and heads the ball into the hoop. From then on everything changes for them both.