George dan Harold mengira mereka sudah terbebas dari upil-upil. Hewan peliharaan baru mereka, Sulu si Hanster Bionik, telah mengalahkan Cowok Upil Bionik, dan dengan keajaiban ilmu pengetahuan, Melvin Sneedly telah kembali normal (yah, hampir normal sih). Mula-mula sepertinya petualangan terakhir mereka benar-benar bakal berakhir bahagia... kecuali karena satu (oke, tiga tepatnya) Robo-Upil Sup…
Dr. Dilbert Dinkle started his career as an ordinary, everyday evil genius/inventor/bank robber. But when he awakens one day transformed into a walking, talking puddle of pee, he vows to destroy every toilet in town. Will the devious Dr. Dinkle and his conniving cat, Petey, ruin restrooms for the rest of us? Or could this be a job for the death-defying duo of Super Diaper Baby and Diaper Dog?
George and Harold are behind bars for a crime they didn't commit But just as they are settling into their new life, they are pulled from prison by a time-traveling tyrant named Tippy Tinkletrousers Now the boys are taking a trip back in time to the carefree days of kindergarten, when the scariest thing they had to face was not evil mad scientists or alien cafeteria ladies but a sixth-grade bull…