Grandpa Doesn't Know Me Anymore

Dogs and Cats aren't suppose to get along, right? Aren't they suppose to be enemies? Well, Marty Mutt thought so and a new cat just had to move in. Should Marty Mutt accept this cat or should he stick to his stubborn ways? Should he try to make friends or should he keep his distance like he always has? Should he get to know the cat or should he rely on the stories he heard and leave it at that? Let's find out together.