Dennis's father gets a surprise encounter with a policeman, leading to a wild chase through the city with Ruff, who's stolen the cop's hat. The pursuit ends with Ruff being caught, and Dennis earning a special honor for his bravery.
1. So Long, Old Paint/Trembly Assembly/Private I
Aired: Sep 9, 1985In the next episode, Mr. Wilson's house-painting project is disrupted by Denn...
2. A Visitor from Outer Space/Train That Boy/Genie Madness
Aired: Sep 16, 1985An extraterrestrial visitor arrives in Dennis's room seeking solace from the ...
3. Cheer Up/Ghostblusters/The Life You Save
Aired: Sep 23, 1985Mr. Wilson's hospital visit takes an unexpected turn when Dennis surprises hi...
4. Shark Treatment/Jungle Bungle/Racetrack Menace
Aired: Sep 30, 1985A beachside film production takes a dramatic turn when a mechanical shark's r...
5. All the President's Menace/The Love Rowboat/Wilson the Menace
Aired: Jun 9, 1986Dennis discovers a hidden world within the iconic monument, where he befriend...
6. Fishing for Trouble/Future Fortune/Time Bomb
Aired: Oct 14, 1985Dennis and Mr. Wilson embark on a fishing adventure, with the latter determin...
7. Spa Blahs/Whale of a Tale/Disaster on the Green
Aired: Oct 21, 1985George Wilson's health spa experience takes a chaotic turn when Dennis tags a...
8. Here, Kitty!/Circus Berserkus/The Monster of Mudville Flats
Aired: Oct 27, 1985Dennis's well-intentioned attempt to care for a stray kitten turns into a cha...
9. The Price of Stardom/Space Menace/The Magic Flute
Aired: Nov 3, 1985Dennis's new role as prop man for the community theater leads to a hilarious ...
10. Dennis' Yard Sale/The Abominable Snow Menace/It Came from the Planet Dennis
Aired: Nov 10, 1985Dennis takes matters into his own hands by selling off most of the Mitchell f...
11. Snowman Madness/The Invisible Kid/Home Destruction
Aired: Nov 17, 1985Next episode: Henry and Dennis' snowman-building adventure takes a slippery t...
12. Chitty Chitty Moon Walk/Wet 'N Wild/Dennis at the Movies
Aired: Nov 24, 1985Dennis's efforts to keep the secret solar-powered moonwalker safe from prying...
13. The Supermarket/The Big Candied Apple/The Defective Detector
Aired: Dec 1, 1985In the next episode, chaos erupts when Dennis descends upon a local supermark...
14. Henry the Menace/Come Fly with Me/Camping Out
Aired: Dec 8, 1985Henry's father shares stories about his childhood, revealing that even as a l...
15. Up Up and Away (From Here)/Going Ape/Dennis the Pirate
Aired: Dec 15, 1985In the next episode, the gang gets caught up in a thrilling balloon race, wit...
16. It's a Ruff Life/Professor Myron Mentalapse/Dennis Race 2000
Aired: Dec 22, 1985Ruff and Joey's brains get switched, allowing Ruff to speak and Joey to only ...
17. A Better Mousetrap/The Wizzer of Odd/Canine Car Wash
Aired: Dec 29, 1985Mrs. Wilson's return is contingent upon Mr. Wilson eradicating the mouse infe...
18. Ride'Em Cowboy/Tenting Tonight/A Hair Raising Tale
Aired: Jan 5, 1986In the next episode, Dennis and his parents head to his Uncle Bud's stunning ...
19. Medieval Evil/Beaver-Mania/Say Uncle
Aired: Jan 12, 198620. Hopping Mad/Mayan Mayhem/The Big Power Trip
Aired: Jan 19, 1986In the next episode, chaos erupts when Dennis gifts Margaret a magician's hat...
21. Strong Medicine/Gold Strike/Lights! Camera! Mud!
Aired: Jun 16, 1986Dennis acquires superhuman strength after being hit by a special ray invented...
22. Invasion of the Blob/Wild West Show-Down/The Hen Party
Aired: Feb 2, 1986A gelatinous alien invader searches for the perfect hideout to launch an atta...
23. Up Up and Oh Boy!/The Company Picnic/Aw Nuts!
Aired: Feb 9, 1986Henry and Mr. Wilson engage in a thrilling bicycle chase as they attempt to c...
24. Clip-Joint Capers/Tanks for the Memory/Second Honeymoon
Aired: Feb 16, 1986The gang's barber shop is disrupted when bank robbers next door try to escape...
25. A Couple of Coo-Coos/The Cloneheads/Nothing But the Tooth
Aired: Feb 23, 1986In the next episode, Dennis's misadventure begins when he accidentally locks ...
26. Mummy's Little Boy/Horsing Around/Dennis Plasters Pamplona
Aired: Mar 2, 1986In the next episode, Joey's antics take a dramatic turn when he's mistakenly ...
27. Dennis Predicts/Dennis & the Kangaroo Cavalry/Meatball Mess
Aired: Mar 9, 198628. My Fair Dennis/A Good Knight's Work/Life in the Fast Lane
Aired: Mar 16, 198629. A Nightmare at the Opera/A Royal Pain/Having a Marbleous Time
Aired: Mar 23, 198630. Marky the Menace/Dennis the Genius/A Step Ahead
Aired: Mar 30, 198631. The Boss Gets Scalped/Mr. Dennistein/Lean Green Jumping Machine
Aired: Apr 6, 198632. Laundry Business/Journey to the Center of Uncle Charlie's Farm/Dennis Springs Into Action
Aired: Apr 13, 198633. Ruff's Hat Trick/A Moving Experience/Lemon-Aid
Aired: Apr 20, 1986Dennis's father gets a surprise encounter with a policeman, leading to a wild...
34. Sounds in the Night/Dennis Does Hollywood/Ruff to the Rescue
Aired: Apr 28, 1986Dennis Mitchell's boundless energy and carefree antics wreak havoc on his gru...
35. The Bicycle Thief/Menace of the Mine Shaft/Margaret's Birthday Party
Aired: May 5, 198636. So Sorry!/Shock Therapy/Yard Wars
Aired: May 12, 1986Dennis Mitchell's playful antics wreak havoc on his neighbor George Wilson's ...
37. Ruff's Masterpiece/Going to the Dogs/Big Baby
Aired: May 19, 198638. Building a Better Dog House/Dennis and the Dragon/Hic!
Aired: May 27, 198639. Strike Up the Band/Queen of Chinatown/Tale of a Tux
Aired: Jun 2, 198640. Give a Little Whistle/Charmed I'm Sure/After Hours
Aired: Jun 9, 198641. Baseball's Best Ballplayer; Mr. Wilson's Diet; The Backyard Band
Aired: Jun 16, 198642. Double Dennis/Timber Wolves/Help Not Wanted
Aired: Jun 23, 198643. Million Dollar Dennis/3-D and Me/Barber Shop Disharmony
Aired: Jun 30, 198644. Bowling for Dennis/Dennis Conquers the Navy/The Longest Half-Yard
Aired: Jul 7, 198645. Vampire Scare/Give Me Liberty or Give Me Dennis/Wilson for Mayor
Aired: Jul 14, 198646. Dangerous Detour/The Prodigy/The Chimp
Aired: Jul 21, 198647. High Steel/Bicycle Mania/Little Dogs Lost
Aired: Jul 28, 198648. Dennis Destroys Dallas/Black & Blue Hawaii/Oil's Well That Ends Well
Aired: Aug 4, 198649. Door to Door Bore/Dennis in Venice/Young Sherlock Dennis
Aired: Aug 11, 198650. Surf's Up/Yo Ho Ho/The Karate Kiddie
Aired: Aug 18, 198651. Dennis and the Deep/K-9 Kollege/Housepests
Aired: Aug 25, 198652. Animalympics/No Bones About It/Dennis Takes the Cake
Aired: Sep 1, 198653. Quiet Riot/The Magic Pen/A Feeling for Stealing
Aired: Sep 8, 198654. Househusband Henry/Wheeling & Double-Dealing/Stop That Car!
Aired: Sep 15, 198655. Lights, Camera, Auction!/Boy Ahoy/Faulty Alarm
Aired: Sep 22, 1986
56. Hail to the Chief/Dennis in Microchipland/Handy Dandy Dennis
Aired: Sep 29, 198657. Dennis the Businessman/Soccer it to Me, Dennis/Camp Over Here-Over There
Aired: Oct 6, 198658. Hullaballoo at the Harmony Homes/Phantom of the Wax Museum/Dennis and the Gypsy Woman
Aired: Oct 13, 198659. Attack of the Giant Tomatoes/The Dinosaur Doozy/Funhouse Grouch
Aired: Oct 20, 198660. Dennis Rocks Out/Deserted with Dennis/Fashionable Menace
Aired: Oct 26, 198661. Back to the Drawing Board/Part-Time Helper/G.I.George
Aired: Nov 2, 198662. Wanted: Scarface Wilson/Ruff Come Home/10-4 Dennis
Aired: Nov 9, 198663. Heroes Unwelcome/The Martians are Coming/Ancient Olympics
Aired: Nov 16, 198664. Pool Haul/Fool for Gold/Nothin' to Be Afraid Of
Aired: Nov 23, 198665. Yankee Doodle Dennis/Dennis the Barnstormer/Trial and Error
Aired: Nov 30, 1986
