以下内容来自维基:
Dog Man[edit]
Dog Man is the eponymous first book in the series, released on August 30, 2016. Unlike other books by Dav Pilkey, it contains four separate stories instead of one whole story.
The behind the scenes foreword is a recap of the entire Captain Underpants series, from when George and Harold first met to their creation of Captain Underpants and the misadventures that follow, leading up to the point where everything is back to normal. George and Harold wake up to find that their doubles from the slight future, along with Tony, Orlando, and Dawn, are gone. They search in their tree house, but find some of their old Dog Man comics and have a good laugh. Harold feels that he and George should make another Captain Underpants comic book, but George decides that he and Harold should scrap the Captain Underpants comics and do a comic book featuring Dog Man instead, hence this book.
One day, a cop named Officer Knight and his police dog Greg got seriously injured in an explosion by a bomb assembled by Petey the evil cat. The body of the dog became unable to function, along with Knight's head. So the doctors did surgery to Greg and put his head into Knight's body, causing him to turn into Dog Man.
Dog Man: Unleashed[edit]
Dog Man: Unleashed is the second book in the series, released on December 27, 2016. It revolves around Dog Man and a battle with Flat Petey and Flippy.
Dog Man: A Tale of Two Kitties[edit]
Dog Man: A Tale of Two Kitties is the third book in the series, released on August 29, 2017. It revolves around Dog Man dealing with Petey's clone, Lil' Petey, and Supa Mecha-Flippy.
Dog Man and Cat Kid[edit]
Dog Man and Cat Kid is the fourth book in the series, released on December 26, 2017. It revolves around Dog Man saving Yolay Capresse with help from Lil' Petey.
Dog Man: Lord of the Fleas[edit]
Dog Man: Lord of the Fleas is the fifth book in the series, released on August 28, 2018. It revolves around Dog Man facing new villains, the Fleas.
Dog Man: Brawl of the Wild[edit]
Dog Man: Brawl of the Wild is the sixth book in the series, released on December 24, 2018. It revolves around Dog Man being framed by the Fleas.
Dog Man: For Whom the Ball Rolls[edit]
Dog Man: For Whom the ball rolls is the seventh book in the series, released on August 13, 2019. It revolves around Dog Man's former obsession becoming his greatest fear, and Petey reuniting with his father.
Dog Man: Fetch-22[edit]
Dog Man: Fetch-22 is the eighth book in the series, released on December 10, 2019. It revolves around Dog Man facing the Fair Fairy and 22 Tadpoles.
Dog Man: Grime and Punishment[edit]
Dog Man: Grime and Punishment is the ninth book in the series, which will be released on September 1, 2020.