America's favorite feline, Garfield, follows his owner, Jon, to England. The U.K. may never recover, as Garfield is mistaken for a look-alike, regal cat who has inherited a castle. Garfield savors the royal treatment afforded by his loyal "subjects," but his "reign" is in jeopardy. The nefarious Lord Dargis is determined to do away with Garfield, so he can turn the castle into a resort.