Jerry's magic

Ten-year old Jerry Shore is the man of the house and makes good money selling and renting magical objects he gets from the Wonderworker by the dump. When some of the objects don't work, kids at school demand their money back. However, Jerry has already spent it and would be in big trouble if not for The Doubler, which doubles money left in it overnight. The Wonderworker cautions him not to misuse The Doubler and helps him discover his higher self.