Tom is horrified when the magical ring he is left in charge of has been taken to the city by Jerry who got the ring stuck on his head like a tiara. Tom is left in charge of a priceless magical ring, he becomes horified to find this enchanted ring has become stuck on Jerry's head. Jerry takes off for the city and Tom has to go out looking for him in order to return the ring. The sorcerer's ring begins spouting out a torrent of mischievous magic.

Dennis's rowdy grandfather comes to visit and together they put the neighborhood in an uproar.