Garfield (Bill Murray) had made a triumphant return, this time in a grand adventure taking him and his loyal dog Sidekick Odie, along with their owner Jon Arbuckle (Breckin Meyer), to the majestic landscapes of the United Kingdom. Little did they know, their arrival would set off a chain of events that could change the course of history forever. Mistaken for a look-alike cat named Regal Cat, Garfield finds himself inheriting a royal castle, much to the dismay of the conniving and immortal villain, Dargis (Sir Billy Connolly). Determined to rid himself of this imposter, Dargis plots to turn the castle into a tourist trap, threatening Garfield's newfound kingdom. As Garfield basks in the luxuries of his royal treatment, he quickly realizes that the world of royalty is not all it's cracked up to be. With Odie and his feline companions by his side, Garfield must navigate through treacherous plots and schemes to protect his legacy and ensure that his kingdom remains intact. In a tale of humor, heart, and cat-titude, Garfield and Odie will embark on a wild and hilarious journey that will challenge their wit, courage, and friendship. The fate of their kingdom hangs in the balance as they face off against the diabolical Dargis, in a battle of wits and wills that will test the limits of their loyalty and love.