The grumpy miller is having mouse trouble! There are hundreds of mice in his mill and he can’t catch them. So he buys himself a large tabby cat to solve his mouse problem. Fortunately for the mice, the miller mistreats the cat, so he is too unfit to catch even a single mouse. But when the miller loses his temper and threatens to drown the poor cat for being so useless, the mice decide they must intervene, as they have grown surprisingly fond of him…