Grandma has come to stay for the royal visit by Princess Lucy to launch her new badger charity, "Badges for Badgers." Which would be fine, if she hadn't knitted Roman the crummiest jumper (AKA "crumper") on earth that he's forced to wear to school. His whole class is in a fundraising frenzy, led by fame-crazy Rosie Taylor, who is convinced that organizing a charity fashion show is bound to win her favor with the princess. And in a bid of fierce cruelty...