This film is a sequel to the 2001 episode of "Cat and Dog War". The story takes place several years after the last battle between cats and dogs. The hard-won peace is once again threatened. The enemy this time is not the idiot in the previous movie. It is the top agent of the former cat spy organization MEOWS, named Kitty Galore. It successfully stole the core secrets of the dog organization, and in order to retaliate against the dog organization and humans, it designed a horrific and sinister plan to control the world! In the face of such an imminent and unprecedented fatal threat, cats and dogs were forced to form an alliance if they had no choice but to form an alliance-for the first time in the history of these two creatures. In the catastrophe created by a cat., they need to save not only themselves, but also the humans they love deeply. In order to hinder the journey of the evil plan, they must exert all the biological instincts hidden in their bodies to the extreme...