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…
George and Harold have been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity! Unfortunately, the boys can't count on Captain Underpants for help because Tippy Tinkletrousers and his time-travelling hijinks prevented George and Harold from creating him in the first place! With Tippy having changed the course of human history forever, George and H…