Dibble gets a new partner on the beat: the dog Griswald. Top Cat and the gang attempt to outwit him, but the dog always seems to be one step ahead. T.C. manages to get the dog removed from duty after he bites the police sergeant and the police commissioner (Don Messick).

There's a new police chief in the neighbourhood who is disappointed with Officer Dibble's performance. The chief and his army of robots declare war on Top Cat and his gang of feisty felines.