Ana, a 15 year old girl, replaces the SIM card from her phone, with that of her late grandfather. She starts pranking her family by sending them messages, using his number. But the seemingly naive joke turns against Ana.
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.
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.
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.
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.
Oliver is making plans to marry his sweetheart Dulcy with Stan as his best man, but the plans are thwarted when Dulcy's father sees a picture of Ollie and forbids the marriage. The couple plan to elope, and run away to a Justice of the Peace. After typical Laurel and Hardy blundering, they manage to sneak the girl away from her father's house.