Spike leaves Tom in charge of his boy Tyke only to discover upon his return that Tyke now behaves more like a cat than a dog.

When Tom and Jerry's antics unearth an autographed baseball, he warns Tom to keep his paws off it! Tom attempts to obey, but Jerry's got other ideas. The guys chase the treasured ball all over the neighborhood.

A lemur belonging to the Duchess' adventurous cousin puts Tom's job as Under-Butler in jeopardy.