Dennis the Menace Park has been an idyllic haven for children for the entire county of Monterey for decades. But for the past 3 weeks bodies have been found in the park every Sunday Morning. All those found have been killed in vicious attacks by and unknown animal. But in the middle of the City of Monterey? Vicious wild dogs might have been a theory but not in the middle of the city. Still the police are investigating and there have been stepped up security in the area. There seems to be less kids out in the park lately. And almost no one is seen in the park after dark.
It is this situation that the Sheriff Hokum asks the assistance of the characters.