Here's a brief summary:
* Doug is considered a "weirdo" by his classmates because he's different. He's quiet, sensitive, and doesn't fit in with the "cool" kids. He's often bullied and ostracized.
* He finds solace in his love for animals and especially enjoys spending time with his dog, Sparky.
* Doug's life takes a turn when a new family moves in next door. The son, Tommy, becomes Doug's unlikely friend, and they develop a strong bond despite the differences in their personalities.
* Tommy encourages Doug to stand up for himself and to embrace his individuality. He helps Doug see that being different is not a bad thing.
The book ultimately shows how true friendship can help overcome prejudice and social pressures. It highlights the importance of accepting others for who they are, even if they don't conform to societal norms.