Beware — the Nerves!

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 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 is showing his son Tyke how to barbecue when his cooking is disrupted by a typical Tom-and-Jerry chase.

Donald is an admiral on a seagoing voyage with his nephews in which they encounter a ravenous shark.

A crazy squirrel provokes a dog into trying to catch him throughout the picture.

Tom heads for a big city penthouse to become acquainted with a rich pretty female cat that lives there. He brings her Jerry as a gift and does some humiliating things to Jerry. Jerry, in turn, attracts the attention of another cat who also becomes interested in the female cat. It eventually turns into a fight between Tom and the other cat for the lady's hand but Jerry is the one who gets her in the end.

Minnie Mouse knits a sweater for Pluto. When she puts it on him, Pluto does whatever he can to try to get it off, eventually shrinking it to the perfect size for Figaro.

When Margo, Agnes and Edith return from Badger Scout camp, three of the Minions are entranced by the girls' merit badges. Their own attempt at scout camp results in attracting a bear, eating poison berries and eventually blowing up a dam, creating a massive flood. But, when they arrive back home, the girls share their badges, encouraging the rest of the Minions to try their hand at scouting.

As Tom and Jerry stage their typical fight sequences, the patriotic soldier theme of the title is evidenced by such things as a carton of eggs labeled "Hen Grenades"; Jerry dropping light bulbs from an airplane like bombs; and Jerry sending a telegram with the message "Sighted Cat - Sank Same." Musical phrasings from various patriotic war songs are heard throughout. The cut scene after Jerry hitting Tom with the board 4 times was cut from the 1950 reissue print for a war bond joke, and the original footage is currently considered "lost" due to the negatives destroyed in the 1978 George Eastman House fire.

Trixie explains to Forky what a computer does as they experience the common stresses of technology.

Tom is shipwrecked on an island, which is inhabited by at least one mouse - Jerry. To thwart the hungry cat, Jerry disguises himself as a cannibal.

Donald's sister Dumbella sends her three sons Huey, Dewey, and Louie to visit their uncle Donald. They prove to be quite a handful for Donald, even with help from his book on child rearing.