Garfield’s Pet Force

Professor Wally demonstrates the Moscram ray gun to Emperor Jon in the Dorkon palace, explaining that it is powered by a Klopman crystal and can scramble inanimate objects and organisms into new creatures under the user's control. Jon shows interest in taking a wife to continue the royal line, setting up the future conflict.

A warship lands outside the palace as Vetvix meets Jon. Jon instantly falls for the warrior and asks to marry her, while Vetvix senses an opportunity to seize the Moscram.

Wally summons the Pet Force—Garzooka, Odious, Abnermal, and Starlena—to counter Vetvix. Vetvix zombifies the Pet Force except Garzooka; Garzooka takes the Klopman and escapes with the Professor.

The professor identifies DNA matches for the Pet Force and develops serums that could transform them. Garzooka heads to the Comic World with the serums, hoping to recreate the team there while leaving Vetvix behind.

Garfield's world is revealed to be a comic book within the film. Nermal reads the new Pet Force issue and Garzooka bursts from the pages toward Jon's house, signaling that the events are happening in the comic. Garfield learns the happenings are in the comic and is guided to locate Odie, Arlene, and Nermal as Garzooka hands him the Klopman.

At the Comic Studios, Nermal, Arlene, and Odie spot Garzooka and are given serums that initially fail to transform them. Vetvix captures the real Garfield, mistaking him for Garzooka, and seizes the Klopman.

The group escapes the studio, and Nermal, Odie, and Arlene finally transform into their Pet Force counterparts. Garzooka leads them to confront Vetvix as they head off to engage the threat.

Vetvix zombies Toon World and its residents during the ensuing battle, and Jon becomes zombified while Eli saves Garfield in the chaos.

Garfield, inventor Wally Stegman, his wife Bonita, and Betty survive the attack as zombies batter the tower. The group traps the zombies at the top while the Pet Force fights on.

The Pet Force reaches the tower’s antenna and uses it to bring down Vetvix's ship, but Vetvix zombifies the Pet Force again and creates a monstrous creature made from the town's buildings.

Emperor Jon and Professor Wally break free, seize the ship, and Garfield uses the Moscram to dezombify the Pet Force and defeat the monster. He also uses Moscram to fuse Vetvix with a happiness invention, turning her into an ally.

With Vetvix redeemed, Eli uses the Moscram to reverse zombification on everyone else and the Pet Force return to their original forms. Garzooka presents Nermal with an Abnermal costume, and Emperor Jon and Vetvix begin a real wedding as Wally vows to destroy the Moscram. The Toon World residents start rebuilding as Garfield and Arlene share a moment before a space-dance finale.