Garfield views Thanksgiving as a glorious feast, a time to indulge in culinary delights without restraint. However, that joyous tradition takes a turn when his veterinarian, Liz, delivers some unwelcome news: Garfield needs to shed some pounds and embark on a diet. As he grapples with this unexpected challenge, the beloved lasagna-loving cat must navigate his cravings while trying to maintain the spirit of the holiday. With humor and heart, Garfield learns that Thanksgiving might be about more than just food.