Dennis’s maternal grandfather, Mr. Johnson (George Kennedy), moves in with the Mitchells, causing George to feel old and jealous of his more active counterpart.
Seizing on George's insecurity about aging, two con artists—the Professor (Brian Doyle-Murray) and his assistant Sylvester (Carrot Top)—try to swindle George out of $10,000 for a fake "youth potion". Dennis the Menace Strikes Again!
Despite his reputation for trouble, Dennis inadvertently thwarts the swindlers' various disguises and schemes, eventually helping the police catch them. Cast and Characters Dennis’s maternal grandfather, Mr
On Mr. Wilson's birthday, Dennis's attempt to give him a collection of pets—including frogs, snakes, and even a baby alligator—leads to George accidentally riding a wagon down the stairs and getting a cake in the face. Dennis’s maternal grandfather