El Capitan Calzoncillos y la asquerosa venganza de los Robocalzones Radioactivos: (Spanish language edition of Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers)

When we last saw our heroes, George and Harold, they had been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity. But why, you might ask, didn't the amazing Captain Underpants save the boys from this frightening fate? Because Tippy Tinkletrousers and his time-traveling hijinks prevented George and Harold from creating Captain Underpants in the first place! Now, having changed the course of human history forever,…