Hubie and Bertie, hobo mice, are about to enter a new home but notice it’s inhabited by a champion mouser, Claude Cat. They use various techniques to drive Claude crazy. They lower Bert by fishing line down the chimney; he swats the cat and is then pulled back up fast. They pump Claude full of air, sending him zooming around the room (causing the feline to swear off catnip) they lower a vicious bulldog to pummel him (cat checks tongue and takes a teaspoon of medicine).
