A baby woodpecker mistakes Jerry for his mother. The mouse rejects the newly hatched bird but soon finds himself protecting it against his feline nemesis, Tom.
During yet another pursuit of Jerry, Tom ends up being killed when an upright piano slides down the stairs and slams into him. He meets a feline St. Peter at the gate of the Heavenly Express, but is initially turned away due to his constant torture. However, he will be allowed onto the train if he can have Jerry sign a letter of forgiveness within one hour. If not, it's Hell for Tom. Will he go up or down?
The kiddie radio host, Uncle Dudley, reminds his listeners that it is "Be Kind to Animals" week. Tom resolves to be kind to his mouse-nemesis, Jerry, but the cat changes his mind after sneaking a look at Jerry's diary.
Jerry agrees to help an escaped circus lion, whose first need is food. But first they'll have to evade Tom, who heard the news bulletin and is armed with a shotgun.
When Tom's harassment gets out of hand, Jerry writes to his Cousin Muscles, a tough inner city mouse, and asks for his help.
A baby elephant rolls off the circus train and right into Tom's bed. He quickly allies himself with Jerry, and with a rolled-up trunk and some paint, passes himself off as a giant mouse. The two then keep trading places to the bafflement of Tom.
Tom, whose appetite was whetted by a radio cooking program, wants to make a meal out of the pet goldfish. Jerry, who is friends with the fish, does what he can to thwart their feline foe.
At the home of Viennese composer Johann Strauss lived Johann Mouse. Whenever the composer played his waltzes, the mouse would dance to the music, unable to control himself. One day, when Strauss was away, the house cat played his master's music. When word got out about a piano-playing cat and a dancing mouse, they were commanded to perform for the emperor.
Jerry Mouse befriends a newly hatched duckling who can't swim and ends up protecting him against his feline nemesis, Tom.
Tom has plans to take a nice long nap in a hammock, but Jerry has gotten there first and is snoozing happily, so the two fight it out to see who gets to sleep there.
Tom drowns in a lake and sinks to the bottom. There, he finds a mermouse, which he tries to capture and eat.
Tom and Jerry need to repeatedly come to the rescue when a teenage babysitter, supposed to be looking after the baby, is more interested in talking on the telephone than in paying attention to the baby who keeps crawling away.
Tom is the official cat on the cruise ship S.S. Aloha, but he'll be kicked off if the captain finds even one mouse. That one, of course, is Jerry, who sneaks on board just before sailing.
Tom designs a better mousetrap that would have made Rube Goldberg jealous. While he sleeps, the mouse that Tom drew wakes Jerry and they get chased by the cat Tom drew. As Tom awakes, they make a strategic alteration to the design.
Tom is in a pool hall after hours; as he soon discovers, Jerry is sleeping in the corner pocket. Tom chases Jerry around the table and the rest of the pool hall. Tom's energetic game of pool is more than Jerry can cope with. Soon, the table becomes a battlefield.
Tom ties up Spike and sneaks into the courtyard of the glamorous Toodles Galore with his bass, hoping to woo her with his song, much to the annoyance of a sleeping Jerry.
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.
Jerry crashes a vase onto Tom's head, which gets Mammy to throw Tom out. Jerry at first revels in his freedom, but soon tires of this, and, under a flag of truce, hatches a plan with 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...
Tom Cat is a concert pianist who plays beautifully until he is interrupted by Jerry Mouse.