Cool Cat loves to protect kids, but Dirty Dog hates children. Mad because Coronavirus is fading away, Dirty Dog makes his own virus to infect the kids – the Dirty Dog Virus! But the Dirty Dog Virus becomes a national danger, so Cool Cat enlists his family-friend Colonel Nalls and his Harrier Jet to help hunt down Dirty Dog and destroy the virus. Can Cool Cat stop the virus in time and save your life?