robberies throughout town, and is noticed by Chief Bennett. Bringing the sleeping George an apology card, Dennis plays with his dentures, loses the two front teeth, and replaces them with Chiclets just before he has his picture taken for the local newspaper. Henry and Alice both leave on business trips, but are unable to find anyone willing to babysit Dennis. George's wife, Martha, agrees to let him stay with them, happy to treat him as the child they never had. George is infuriated by slipping in Dennis' spilt bath water, and discovering Dennis has replaced his nasal spray with mouthwash and the latter with toilet cleanser. Dennis lets his dog, Ruff, inside the Wilsons’ house, leading George to mistake him for Martha in the dark living room. In the attic, Dennis' carelessness causes George to slip on mothballs and nearly crushes him with a canoe which contains the garden lanterns he's looking for. George has been chosen to host his garden club's "Summer Floraganza", having spent almost forty years growing a rare orchid that will finally bloom that night. During the party, Dennis presses the garage door button (thinking it's a doorbell, repeating his earlier ding-dong ditch prank), and it opens and upends the entire dessert table, and is angrily sent to his bedroom. While the Wilsons and their guests await the flower’s nocturnal display, Switchblade Sam robs the house, stealing George’s antique coin collection. Dennis, who heard the burglar and then discovers the emptied safe, alerts George, distracting everyone from the flower's brief blooming, and it dies afterward. Furious and unaware that he has been robbed, George coldly chastises Dennis, who flees to the woods in sadness and is caught by Switchblade Sam. Henry and Alice arrive home to learn he has disappeared, prompting a town-wide search, and even a guilt-ridden George sets out to find him after realizing that he was telling the truth about the robbery. Switchblade Sam prepares to leave town with Dennis as an unsuspecting hostage. Showing him the proper way to tie him up, Dennis handcuffs him, loses the key, unintentionally bludgeons him, and sets him on fire. Just as Dennis discovers George’s stolen coins and realizes Switchblade Sam is a thief, Switchblade Sam attempts to stab him but is snared in a rope caught by a passing train. The next morning, Dennis returns home with the captured Switchblade Sam and George's recovered coins,