It is a standalone sequel to the 1993 theatrical feature Dennis the Menace and stars Don Rickles, Betty White, and Justin Cooper.

They include frogs, lizards, snakes, insects, tarantulas, scorpions, mice, exotic mammals, and even a baby alligator.

The ordeal ends with George unintentionally riding down a flight of stairs in Dennis' red wagon and accidentally getting his birthday cake thrown on his face by his wife, Martha (Betty White).

Soon after the incident, Mr. Johnson, Dennis' grandfather, Alice's father, and Henry's father-in law (George Kennedy), shows up and announces that he is moving in with them.

Mr. Johnson, however, announces intentions to get his camper back, having promised to take Dennis to the Grand Canyon, also because of everything he has put him through.

While enjoying Christmas, George and Martha find out what has happened on the news as Dennis explains to the camera and Mr. Johnson is being airlifted to safety.