#1 | 10.09.1966Episode 1 (The Bubbler)
The Bubbler kidnaps the Shah of Shish-Ka-Bob and it's up to the Impossibles to rescue him.
#2 | 10.09.1966Episode 2 (The Shocking Electrical Monster)
Dr. Shock uses his Master Mix Monster Machine to turn his assistant Igor into an electricity-absorbing monster.
#3 | 10.09.1966Episode 3 (The Spinner)
#4 | 17.09.1966Episode 4 (The Perilous Paper Doll)
The Paper Doll Man steals a top secret plan and is out to steal the second part.
#5 | 17.09.1966Episode 5 (The Spyder Man)
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 | 17.09.1966Episode 6 (Beamatron)
#7 | 24.09.1966Episode 7 (The Burrower)
The Burrower uses his burrowing machine to steal half a million dollars from the bank and dig ten miles down to his lair.
#8 | 24.09.1966Episode 8 (The Menace from the Wax Museum)
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 | 24.09.1966Episode 9 (Timeatron)
Timeatron uses his time cabinet to bring villains from the past to pillage for him.
#10 | 01.10.1966Episode 10 (Smogula)
Smogula freezes the Impossibles and seals them within a cave, so they will not interfere with his plans to conquer Empire City.
#11 | 01.10.1966Episode 11 (The Alien Brain from Outer Space, Part 1)
A giant alien brain arrives on Earth and captures Buzz and Frankenstein Jr.
#12 | 01.10.1966Episode 12 (The Sinister Speck)
The Speck uses a formula to shrink himself in order to photograph top secret plans.
#13 | 08.10.1966Episode 13 (Fero, the Fiendish Fiddler)
To get the Impossibles out of the way, Fero uses his fiddle to transport them to different planets.
#14 | 08.10.1966Episode 14 (The Alien Brain from Outer Space, Part 2)
#15 | 08.10.1966Episode 15 (Mother Gruesome)
Mother Gruesome invents a machine that brings villainous storybook characters out of their stories to help her with her crimes.
#16 | 15.10.1966Episode 16 (Televisatron)
Televisatron transports the Impossibles to different television shows.
#17 | 15.10.1966Episode 17 (U.F.O. Unidentified Fiendish Object)
The alien Zargon unleashes his warrior Destructo to conquer Earth.
#18 | 15.10.1966Episode 18 (The Diabolical Dauber)
The Dauber uses a special brush where anything he paints becomes real.
#19 | 22.10.1966Episode 19 (Aquator)
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 | 22.10.1966Episode 20 (The Unearthly Plant Creatures)
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 | 22.10.1966Episode 21 (The Wretched Professor Stretch)
Professor Stretch causes havoc with his elastic abilities.
#22 | 29.10.1966Episode 22 (The Devilish Dragster)
#23 | 29.10.1966Episode 23 (The Deadly Living Images)
The Mad Inventor has invented the Double Identity Duplicator Projector to create living images he can control.
#24 | 29.10.1966Episode 24 (The Return of the Spinner)
#25 | 05.11.1966Episode 25 (Satanic Surfer)
The Surfer takes pictures of a top secret submarine.
#26 | 05.11.1966Episode 26 (The Colossal Junk Monster)
The Junk Man creates the Colossal Junk Monster in a plot to eliminate Frankenstein Jr.
#27 | 05.11.1966Episode 27 (The Puzzler)
#28 | 12.11.1966Episode 28 (The Scheming Spraysol)
#29 | 12.11.1966Episode 29 (The Incredible Aqua-Monsters)
Buzz and Frankenstein Jr. guard the Navy's new Hydrotomic Submarine to prevent Dr. Hook and his aquatic monsters from stealing it.
#30 | 12.11.1966Episode 30 (The Scurrilous Sculptor)
#31 | 19.11.1966Episode 31 (The Artful Archer)
The Archer steals a priceless violin and a million dollars.
#32 | 19.11.1966Episode 32 (The Gigantic Ghastly Genie)
Zorbo the Great creates a genie and plans to use its three wishes in order to defeat Frankenstein Jr. and conquer the world.
#33 | 19.11.1966Episode 33 (The Insidious Inflator)
The Inflator creates giant balloon monsters to help him commit crimes.
#34 | 26.11.1966Episode 34 (The Dastardly Diamond Dazzler)
The Diamond Dazzler steals a precious diamond in order to awaken the genie within.
#35 | 26.11.1966Episode 35 (The Birdman)
Birdman and his robotic birds Vulturo, Rodantus, and King Condor abduct two astronauts and hold them for a ransom of $1,000,000.
#36 | 26.11.1966Episode 36 (The Return of the Perilous Paperman)
#37 | 03.12.1966Episode 37 (Cronella Critch the Tricky Witch)
A witch named Cronella Critch robs a charity for orphans party.
#38 | 03.12.1966Episode 38 (The Invasion of the Robot Creatures)
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 | 03.12.1966Episode 39 (The Terrible Twister)
#40 | 10.12.1966Episode 40 (Professor Stretch Bounces Back)
Professor Stretch returns and creates a rubber monster to help him.
#41 | 10.12.1966Episode 41 (The Manchurian Menace)
#42 | 10.12.1966Episode 42 (The Terrifying Tapper)
#43 | 17.12.1966Episode 43 (The Anxious Angler)
#44 | 17.12.1966Episode 44 (The Mad Monster Maker)
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 | 17.12.1966Episode 45 (The Rascally Ringmaster)
The Ringmaster puts on a circus and robs from those who attend.
#46 | 24.12.1966Episode 46 (Billy the Kidder)
Billy the Kidder is a cowboy who rides a robotic horse and plans to rob the U.S. Mint.
#47 | 24.12.1966Episode 47 (The Monstermobile)
The Mad Inventor has invented the Monstermobile and uses its many gadgets to commit crimes.
#48 | 24.12.1966Episode 48 (The Fiendish Dr. Futuro)
Dr. Futuro comes from the 40th century to the twentieth century to steal a million dollar gold brick.
#49 | 31.12.1966Episode 49 (The Crafty Clutcher)
The Clutcher uses an invention that brings his gloves to life.
#50 | 31.12.1966Episode 50 (Pilfering Putty Monster)
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 | 31.12.1966Episode 51 (The Infamous Mr. Instant)
Mr. Instant uses his insta-gun that can make anything in an instant.
#52 | 07.01.1967Episode 52 (The Bizarre Batter)
The Batter kidnaps a baseball star and holds him for ransom.
#53 | 07.01.1967Episode 53 (The Spooktaculars)
Dr. Spectro creates three giant ghoulish ghosts in order to take over Penciltrainia.
#54 | 07.01.1967Episode 54 (The Not So Nice Mr. Ice)
Mr. Ice and his henchman Freezer Freezer freeze the city in order to take it over.