After three months in the Blin household, Cartoon the kitten is starting to find his place in the family. From catnaps with adolescent Chloe, playing with little Arthur, and sharpening his claws in a never-ending rivalry with Tony—the head of the household— Cartoon is set. That is, until one day when he finds himself in a moving car that is pulling into a place with all sorts of strange animal noises and smells. What is going on? Will the honeymoon be over once and for all when Cartoon meets the Vet?