Jerry finds himself in charge of a foundling mouse called Nibbles, who is eager to steal milk from Tom's bowl and oblivious to the danger.
It's spring, and Tom is much more interested in the female cat next door than in Jerry.
The family dog warns Tom not to make any noise so he can take a nap. Jerry hears this and immediately devises plans to ensure that the dog's nap will be interrupted.
Tom is all set to eat Jerry when a hawk swoops down and grabs Jerry. To get Jerry back, Tom poses as a female hawk and quickly finds his new lover to be more than he bargained for.
Tom is golfing, but having no success. Jerry insures that remains the case.
Jerry Mouse gets tired of living the country life and decides to head to the big city. However, the experience doesn't turn out quite like Jerry had expected.
Tom invites Toots to an elegant dinner. However, he's made the mistake of trying to put Jerry to work, as a serving boy, a corkscrew, and other tasks. Jerry puts up with a little of this, but mostly gets revenge on Tom.
Tom's new book on "how to catch a mouse" doesn't prove too helpful against Jerry; actually, Jerry seems to make better use of it than Tom.
Jerry runs into a dog pound (and right on top of a napping Spike) to escape a rather mangy-looking Tom. To avoid being ripped to shreds, Tom borrows the head of a nearby dog statue. This easily fools the dogs, but not Jerry, and Tom keeps losing his newfound head...
Spike the bulldog, grateful to Jerry for getting him out of the dogcatcher's van, offers to help the little mouse any time he whistles. Tom, Jerry's feline tormentor, seeks to overcome this new disadvantage.
Tom inherits $1,000,000 from an eccentric aunt on the condition that he not harm any living thing - even a mouse. And guess which mouse keeps following him around and pointing this out to him?
Tom's advances on a young jive-talking girl cat get nowhere; nowhere, that is, until Tom gets a zoot suit. Armed with his miles of fabric and a new cool lingo, Tom still has to deal with the tricks of his nemesis, Jerry.
