 Pied Piper Porky Pig vows to rid the town of Hamelin of all its rats, and the cats of Hamelin are furious at Porky for usurping their rat-catching job. Disguising himself as a giant rat, the "grand poobah" of the cats intends to discredit Porky in the eyes of the town s mayor, by making it seem that Porky hasn t entirely fulfilled his promise to remove every last rat.