This short chapter presents a fictional documentary of Dog Man’s creation. Harold and George—the protagonists of Captain Underpants—write about themselves from a third-person point of view. They describe becoming friends in kindergarten, which led them to make comic books together.

The first character that George and Harold created together was the superhero Dog Man. In fourth grade, they created Captain Underpants comics together based on their real-life adventures with the titular hero. After living through “danger…horror…and ridiculously convoluted plotlines” (6-8) with Captain Underpants, George and Harold find their old Dog Man comics stored in their treehouse. They reread their old work and decide to reboot Dog Man with improved spelling and art. The Prologue ends with a panel that shows George and Harold presenting their new Dog Man book to the reader and telling them to enjoy it.