Sweet ‘n’ Sour: After the Powerpuff Girls beat Mojo Jojo, Fuzzy Lumpkins, and the Ganggreen Gang, the girls see a new group of criminals; a group of cute little animals, that rob Townsville blind. The girls try to stop them, but because of their innocent looks, the animal criminals have the advantage, and the town, blinded by the animals’ cuteness, begins turning against the girls. The girls have to figure out a way to put an end to their crime streak by getting children involved.