After staying up all night watching TV, Garfield tries to get some sleep. Binky the Clown mistakenly believes that he is meant to sing a birthday song at Garfield's address, and refuses to leave until he can perform.

Wade believes that the police will arrest him after he rips the tag off the bottom of a couch.

Garfield is diagnosed with the Hawaiian Cat Flu, an unusual disease that causes him to dance the hula whenever somebody mentions Hawaii or anything Hawaiian. Jon uses Garfield's ailment to win money on a TV show featuring funny animal stunts.

Garfield plays in a cardboard box, imagining himself driving a race car and flying an airplane. When Odie joins, he and Garfield imagine themselves stranded in the ocean.

Roy takes advantage of Orson's overactive imagination to pretend that Earth is being invaded by aliens that resemble cheese danishes. While most of the farm panics, Lanolin investigates Roy's prank.

After Garfield is mean to Nermal, Jon sends him to a strict obedience school, where he is treated as a prisoner.

Overeating leads Garfield to have a nightmare that his appetite runs out of control, prompting him to balloon into a massive, insatiable giant. The military is eventually called in to continue feeding him.

When Roy accuses the others of not being able to take a joke, they begin to call him "Banana Nose", which hurts his feelings to the point where he leaves the farm. When he relies on his sense of smell to save Booker from a trap, he gains appreciation of his nose.

In a poem rapped by Garfield, Odie wanders around the neighborhood and meets a tough dog named Butch and his flunkies.

Garfield watches a horror movie during a thunderstorm while Jon goes out shopping. The electricity goes out and Garfield thinks Jon has been captured by a monster.

Orson and Booker think that it is time for Sheldon to hatch, so Orson sits on him for a night. A fox comes and kidnaps Sheldon while Orson is away.

While Jon goes on a date with Liz, Garfield's allergies act up, and he cannot find out what is making him sneeze.

Garfield feels mistreated by Jon, so he looks for a new home. A rich girl finds him and takes him to her giant manor.

Orson uses a book on psychology to hypnotize Wade into being "the bravest duck in the world." Wade begins to act extremely reckless, to the point of disturbing a large bull.

A mouse named Floyd realizes Garfield does not chase mice, so he informs a mouse clan about the situation. They end up invading the house.

Garfield is being chased by a dog when he runs into Floyd. The three animals meet and show each other their imitations of the other's sounds (Garfield barks, Floyd meows, and the dog squeaks), and the trick helps them evade an animal catcher from the pound.

The gang is bored, so Orson inspires them to play a game called "Pig Ball" that he found in an old book. Roy pranks the group by making a list of ridiculous rules and swapping them with the real ones.

Nermal visits Garfield's house and Garfield gets jealous of the attention Nermal receives. Garfield ends up climbing a tree, eventually becoming too scared to come back down.

After Garfield messes with the scale to say that Jon is overweight, he is dragged into doing an exercise routine with Jon.

Orson narrates a story about how the worm chasing-obsessed Booker turned over a new leaf.

When Jon tells Garfield to behave himself, Garfield's conscience manifests as his "good" and "bad" side. The angelic former tries to encourage him to do good deeds, while the demonic latter tempts him into destruction and pranks.

Jon, Garfield, and Odie vacation in a cabin. While Jon goes to buy groceries, Garfield and Odie are snowed inside the cabin without food.

Orson reading Sheldon the story of Humpty Dumpty spreads into a rumor of a monster lurking around the farm.

Garfield and Jon have a shared dream where they trade places. Jon, as a cat, causes trouble, and Garfield, as a human, must prevent it.

To win Jon a birthday present, Garfield goes on a game show titled "Name That Fish", hosted by Binky the Clown.