
Season 1
Episodes
1. The Bubbler
1966-09-10
The Bubbler kidnaps the Shah of Shish-Ka-Bob and it's up to the Impossibles to rescue him.

2. The Shocking Electrical Monster
1966-09-10
Dr. Shock uses his Master Mix Monster Machine to turn his assistant Igor into an electricity-absorbing monster.

3. The Spinner
1966-09-10
The Spinner steals a $1,000,000 tiara.

4. The Perilous Paper Doll
1966-09-17
The Paper Doll Man steals a top secret plan and is out to steal the second part.
5. The Spyder Man
1966-09-17
Professor Conroy and Buzz unveil the blueprints for the Spy Detector XK-00-7 at a Maximum Security Building. Unfortunately, the blueprints are targeted by the Spyder Man.
6. Beamatron
1966-09-17
Beamatron steals a priceless painting from a ship.

7. The Burrower
1966-09-24
The Burrower uses his burrowing machine to steal half a million dollars from the bank and dig ten miles down to his lair.
8. The Menace from the Wax Museum
1966-09-24
Upon an encounter with Buzz at the wax museum, Mr. Menace uses his monsters Godzonka, Gorillis and Cyclaws in an attack upon San Francisco.
9. Timeatron
1966-09-24
Timeatron uses his time cabinet to bring villains from the past to pillage for him.
10. Smogula
1966-10-01
Smogula freezes the Impossibles and seals them within a cave, so they will not interfere with his plans to conquer Empire City.
11. The Alien Brain from Outer Space, Part 1
1966-10-01
A giant alien brain arrives on Earth and captures Buzz and Frankenstein Jr.
12. The Sinister Speck
1966-10-01
The Speck uses a formula to shrink himself in order to photograph top secret plans.
13. Fero, the Fiendish Fiddler
1966-10-08
To get the Impossibles out of the way, Fero uses his fiddle to transport them to different planets.
14. The Alien Brain from Outer Space, Part 2
1966-10-08
A giant alien brain arrives on Earth and captures Buzz and Frankenstein Jr.
15. Mother Gruesome
1966-10-08
Mother Gruesome invents a machine that brings villainous storybook characters out of their stories to help her with her crimes.
16. Televisatron
1966-10-15
Televisatron transports the Impossibles to different television shows.

17. U.F.O. Unidentified Fiendish Object
1966-10-15
The alien Zargon unleashes his warrior Destructo to conquer Earth.
18. The Diabolical Dauber
1966-10-15
The Dauber uses a special brush where anything he paints becomes real.

19. Aquator
1966-10-22
Aquator has stolen a secret formula from a scientist who is friends with Big D and shrinks himself to microscopic size in order to get all the microscopic creatures to become large.

20. The Unearthly Plant Creatures
1966-10-22
Plant Man thaws the last three prehistoric plants (the Carnivorous Chewer, the Creeping Crusher and the Fire-Breathing Snapdragon) from a glacier and then sprays them with his Obedience Ray in a plot to eliminate Buzz and Frankenstein Jr.
21. The Wretched Professor Stretch
1966-10-22
Professor Stretch causes havoc with his elastic abilities.

22. The Devilish Dragster
1966-10-29
The Dragster has stolen a valuable item.

23. The Deadly Living Images
1966-10-29
The Mad Inventor has invented the Double Identity Duplicator Projector to create living images he can control.

24. The Return of the Spinner
1966-10-29
The Spinner returns and steals a priceless pooch.

25. Satanic Surfer
1966-11-05
The Surfer takes pictures of a top secret submarine.
26. The Colossal Junk Monster
1966-11-05
The Junk Man creates the Colossal Junk Monster in a plot to eliminate Frankenstein Jr.

27. The Puzzler
1966-11-05
No overview available.
28. The Scheming Spraysol
1966-11-12
Spraysol steals top secret documents.

29. The Incredible Aqua-Monsters
1966-11-12
Buzz and Frankenstein Jr. guard the Navy's new Hydrotomic Submarine to prevent Dr. Hook and his aquatic monsters from stealing it.

30. The Scurrilous Sculptor
1966-11-12
The Sculptor turns people into statues.

31. The Artful Archer
1966-11-19
The Archer steals a priceless violin and a million dollars.
32. The Gigantic Ghastly Genie
1966-11-19
Zorbo the Great creates a genie and plans to use its three wishes in order to defeat Frankenstein Jr. and conquer the world.

33. The Insidious Inflator
1966-11-19
The Inflator creates giant balloon monsters to help him commit crimes.

34. The Dastardly Diamond Dazzler
1966-11-26
The Diamond Dazzler steals a precious diamond in order to awaken the genie within.

35. The Birdman
1966-11-26
Birdman and his robotic birds Vulturo, Rodantus, and King Condor abduct two astronauts and hold them for a ransom of $1,000,000.

36. The Return of the Perilous Paperman
1966-11-26
The Paper Doll Man returns and causes trouble.

37. Cronella Critch the Tricky Witch
1966-12-03
A witch named Cronella Critch robs a charity for orphans party.

38. The Invasion of the Robot Creatures
1966-12-03
Sertano the Satellite King, an alien from Galaxy X, uses a gravity ray in order to get Earth to surrender. Buzz and Frankenstein Jr. must defeat Sertano's robots in order to defeat him.
39. The Terrible Twister
1966-12-03
The Twister is stealing precious jewels.

40. Professor Stretch Bounces Back
1966-12-10
Professor Stretch returns and creates a rubber monster to help him.

41. The Manchurian Menace
1966-12-10
No overview available.

42. The Terrifying Tapper
1966-12-10
The Tapper transmits himself over phone lines.

43. The Anxious Angler
1966-12-17
The Angler steals secret space research.

44. The Mad Monster Maker
1966-12-17
To perform a crime wave in London, Baron Von Ghoul creates robotic versions of the horror movie monsters the Electroflying Firefly, the Menacing Mummy, and the Wicked Werewolf.
45. The Rascally Ringmaster
1966-12-17
The Ringmaster puts on a circus and robs from those who attend.

46. Billy the Kidder
1966-12-24
Billy the Kidder is a cowboy who rides a robotic horse and plans to rob the U.S. Mint.

47. The Monstermobile
1966-12-24
The Mad Inventor has invented the Monstermobile and uses its many gadgets to commit crimes.
48. The Fiendish Dr. Futuro
1966-12-24
Dr. Futuro comes from the 40th century to the twentieth century to steal a million dollar gold brick.
49. The Crafty Clutcher
1966-12-31
The Clutcher uses an invention that brings his gloves to life.
50. Pilfering Putty Monster
1966-12-31
Mr. Menace uses his putty monster to steal a $1,000,000 coin collection and even kidnaps Buzz. It is up to Frankenstein Jr. to rescue Buzz and defeat Mr. Menace.

51. The Infamous Mr. Instant
1966-12-31
Mr. Instant uses his insta-gun that can make anything in an instant.

52. The Bizarre Batter
1967-01-07
The Batter kidnaps a baseball star and holds him for ransom.
53. The Spooktaculars
1967-01-07
Dr. Spectro creates three giant ghoulish ghosts in order to take over Penciltrainia.

54. The Not So Nice Mr. Ice
1967-01-07
Mr. Ice and his henchman Freezer Freezer freeze the city in order to take it over.