Trama

Sylvester gets a rubber mouse for Christmas, but he much prefers Granny's gift: a new Tweety Bird.

It's Christmas Day in the home of Granny, and her pet cat Sylvester delights at chasing her new Tweety Bird and takes fright at the bulldog unwrapped from under the tree.—Kevin McCorry <mmccorry@nb.sympatico.ca>

On Christmas Day, Sylvester switches the gift tags of his gifts with those of his owner, Granny. Granny is puzzled when her "gift" is a rubber mouse, but then realizes what has happened when Sylvester burps up Tweety's feathers. Tweety distracts Sylvester with another "gift": a large bulldog which devours the cat. After Granny throws out the dog, Sylvester resumes chasing Tweety, using a toy steam shovel and rerouting a toy train as ploys to get at the bird. Eventually, Granny has had enough of Sylvester and the bulldog's carnivorous pursuits, and just before a closing Christmas song, she stamps over the puddy tat and doggy's mouths.—Brian Rathjen <briguy_52732@yahoo.com>

The film opens at Granny's house on a snowy night. An unknown narrator recites the opening from "The Night Before Christmas". We see that the only one who's awake is Sylvester, keeping an eye on a mouse hole in the wall that most likely doesn't have anything in it.

It's a snowy Christmas morning for Sylvester and Granny. Sylvester is awake before Granny, and opens one of his presents. He is disappointed, wanting something more practical. Just then, he hears a squeaky voice singing "Jingle Bells", and peers inside one present to discover a Tweety bird. He switches the tags on the two presents, with the result being that the Tweety bird now has a tag reading "For Kitty" on it, while the rubber mouse has a "For Granny" tag.

Granny comes down the stairs and gives Sylvester the Tweety bird. She is surprised to find a rubber mouse in her box, surmising that it belongs to Sylvester. She steps into the other room, and is horrified to discover he has eaten the bird. She forces him to cough it up, which he does. She then tells Sylvester to kiss the bird, but he responds by swiping it in his mouth again, prompting Granny to force him to spit it out again.

Later, Sylvester tries to sneak Tweety out of his cage again, telling the bird that it is his present. Tweety disagrees, pointing to a very large box near the tree. Sylvester puts Tweety back in its cage, and excitedly unwraps the present to discover it is a large grey bulldog, which devours him. Granny runs over and forces the dog to spit Sylvester out. She then throws the snarling dog out of the house.

Sylvester then tries to catch Tweety with a crane, but he gets Granny instead, and she beats him senseless. He then saws a hole in the ceiling and tries to take the birdcage, but Tweety is ready for him, putting a lit stick of dynamite in the cage. The resulting explosion causes Sylvester to return the damaged birdcage to its proper place, and he staggers down the stairs.

Sylvester snags some toy Indian garb, and goes after Tweety again. Tweety disguises himself as Hopalong Cassidy, complete with a toy gun, which goes off in Sylvester's face and sends him crashing down the Christmas tree. After another chase, Sylvester is eventually defeated by Granny, who quips, "You didn't count on Pocahontas, did you, Geronimo?"

Later, Tweety is riding a toy train around the tree. Sylvester sets up more track sections, and puts the train into reverse. The result is that the train crashes and sends Tweety flying into Sylvester's mouth. However, the grey bulldog devours Sylvester again. Granny forces the two of them to spit out their respective prey, and drags them away, telling them she's going to have some "Christmas spirit" in her house once and for all.

The result is that same night, Tweety and Granny are singing Christmas carols. Sylvester and the bulldog sing as well, but they are greatly muffled by the large Christmas stamps glued to their lips. Iris out.