The carnivorous Turbo Toilet 2000 is determined to take revenge on George, Harold, and Captain Underpants.

Hombre Perro está de regreso, ¡y esta vez lo acompaña un compinche felino! El dúo tendrá que salir al rescate de una glamorosa estrella de cine desaparecida. ¡Una aventura perfecta para Hombre Perro y Supergatito! When a new sitter arrives and a movie star goes missing, Dog Man and Cat Kid investigate, but Petey, the world's most evil cat, complicates their case.

The Supa Buddies have been working hard to help Dog Man overcome his bad habits. But when his obsessions turn to fears, Dog Man finds himself the target of an all-new supervillain! Meanwhile, Petey the Cat has been released from jail and starts a new life with Li'l Petey. "Los superamigos han estado trabajando duro para ayudar a Hombre Perro a superar sus malos hábitos; pero cuando sus obsesiones se vuelven fobias, ¡Hombre Perro se convierte en...

George and Harold create a new comic book hero in Dog Man, a crimefighter with the head of a police dog and the body of a policeman, who faces off against his archnemesis Petey the cat.

A snotty situation ensues when Melvin Sneedley, an academically-gifted student, turns into the Bionic Booger Boy and must be stopped by George, Harold, and Captain Underpants, in a story where, by flipping the pages, the reader may view animated illustrations.

Big Dog and Little Dog like going for walks, though having a bath afterwards is not so much fun.

When a new sitter arrives and a movie star goes missing, Dog Man and Cat Kid investigate, but Petey, the world's most evil cat, complicates their case. "《超狗神探》的電影即將開拍, 超狗神探受命到片場擔任保鑣, 可是受到狗狗壞習慣影響, 超狗神探能好好地肩負起這個職責嗎? 另一方面, 小皮皮受到了皮皮的蠱惑, 內心出現了善惡的掙扎, 究竟他會否順從天生的惡劣因子, 跟隨皮皮作惡,...

Perrazo y Perrito son dos amigos caninos que están juntos en las buenas y en las malas. Y como todo buen perro sabe, los amigos que comen juntos... ¡duermen la siesta juntos! Big Dog and Little Dog are canine companions who stick together through thick and thin. And as any good dog knows, friends who eat together ... nap together! Includes bonus skill-building activities.

"George and Harold have really done it this time--they've created a monster! She's faster, smarter, and more evil than anything the world has seen before--she's Wedgie Woman! With the help of her horrible robots and her horrendous hairdo, Wedgie Woman is on a mission to take over the world, and she'll give a whopping wedgie to anyone who stands in her way--including Captain Underpants."--Page 4 of cover.

Petey the Cat is out of jail, and he has a brand-new lease on life. While Petey's reevaluated what matters most, Li'l Petey is struggling to find the good in the world. Can Petey and Dog Man stop fighting like cats and dogs long enough to put their paws together and work as a team? They need each other now more than ever -- Li'l Petey (and the world) is counting on them!