If Beardy Ardagh is to be believed, things all start going on the bonkers side of very wrong when Mayor Flabby Gomez finally finishes knitting his new home and declares a public holiday in Grubtown for its official opening. There will be free ice-cream and entertainment... only there's been a mix-up at the suppliers and the wrong costumes and props have arrived. And, if that weren't bad enough, there's the matter of a serious leak at Grubtown's new aquarium.