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Season guide

Underdog: Season 2

56 episodes Premiered Jan 23, 1965
Previously on Underdog

Season 2 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Underdog Season 1.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 2 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 2 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 2: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

75%
25%
Mytharc (42): Crucial lore & season climaxes
Core (14): Character development & subplots
Side Quest (0): Standalone / filler
S2·E1 Mytharc

The Witch Of Pickyoon, Part 1

Jan 23, 1965

After Polly's plane crashes, Polly asks Underdog to pick some flowers while she waits under a tree she thinks is friendly. But the 'friendly' tree turns out to be the witch of Pick

S2·E2 Mytharc

The Witch Of Pickyoon, Part 2

Jan 23, 1965

The witch gives Polly a potion that puts her to sleep for a thousand years, and states that only a kiss from a hero will break the spell. Meanwhile, Underdog asks the natives of Pi

S2·E3 Mytharc

The Witch Of Pickyoon, Part 3

Jan 30, 1965

The witch reveals to Underdog the 3 tasks he must do before she awakes Polly. The first task, she tells him that the land is so dry and she wants him to steal the water from other

S2·E5 Mytharc

Weathering the Storm: Part One

Feb 6, 1965

Simon is trying out his latest evil invention, the weather making machine. This dangerous device creates artificial storms and other natural disasters which Simon hopes to use for

S2·E6 Mytharc

Weathering the Storm: Part Two

Feb 6, 1965

Simon and Cad take over the spaceship heading for the moon, taking Polly prisoner. Sensing the danger, General Brainley calls for Underdog. In space, Polly tries to stop Simon, but

S2·E7 Mytharc

Weathering the Storm: Part Three

Feb 13, 1965

Simon Bar Sinister and Cad have reached the Moon and sent their ultimatum to General Brainley and to the world's leaders. Unless the world's leaders turn over their powers to Simon

S2·E8 Core

Weathering the Storm: Part Four

Feb 13, 1965

Seeing that Simon can destroy the earth by using all of the artificially created storms at once, General Brainley convinces the leaders of the world that they have no choice but to

S2·E9 Core

The Gold Bricks, Part I

Feb 20, 1965

Underdog is requested to deliver gold bricks from the bank to an undisclosed location. But Riff Raff and his henchman Mooch disguise themselves as toll guards and surreptitiously s

S2·E10 Mytharc

The Gold Bricks, Part 2

Feb 20, 1965

Unwilling to believe that Underdog is guilty of stealing the gold, Polly decides to try and find the real crooks. Her investigations lead her to an old, run down house in the count

S2·E11 Mytharc

The Gold Bricks, Part 3

Feb 27, 1965

A ghost tricks Polly into entering a bottomless pit. The old haunted house is actually a hideout for Riff Raff and Mooch. The two villains use a combination audio and video devices

S2·E12 Core

The Gold Bricks, Part 4

Feb 27, 1965

Finally realizing that Riff Raff and Mooch are really the crooks behind the theft of the bank's gold, Underdog goes after the pair. No matter what they try, Riff Raff and Mooch can

S2·E13 Mytharc

The Magnet Men, Part 1

Mar 6, 1965

It is the day of the National Olympics, and Sweet Polly Purebred is there reporting the news to the people there and the TV watchers. The first event is the broad jumping contest.

S2·E14 Mytharc

The Magnet Men, Part 2

Mar 6, 1965

Underdog arrives at the White House right as the representatives are planning for his trip, writing that it will take 14 years to get to the planet and also that Underdog needs lot

S2·E15 Mytharc

The Magnet Men, Part 3

Mar 13, 1965

The Magnet Men tell Polly and Underdog, who are still stuck to what is their great gravity gun, that they are hungry and want to eat metal. As a result, they are forced to go back

S2·E16 Core

The Magnet Men, Part 4

Mar 13, 1965

After the 24th hour passes, the Magnet Men switches on their gravity gun which moves the Earth from its place and far from the sun. Not only do buildings and boats tip over, but wa

S2·E17 Mytharc

Phoney Booths, Part 1

Sep 4, 1965

Cad, Simon Bar Sinister's henchman, replaces real phone booths with Phoney Booths. When he returns to the lab to tell his boss all the booths have been replaced, he asks what they

S2·E18 Mytharc

Phoney Booths, Part 2

Sep 4, 1965

More unsuspecting people fall prey to Simon's Phoney Booths. A banker steps into a booth and is ordered to bring all the money from the bank. An engineer steps into a booth and is

S2·E19 Mytharc

Phoney Booths, Part 3

Sep 11, 1965

Simon toys with Underdog who is now in his power after stepping into one of Simon's Phoney Booths. He makes him dance, bring the 1st National bank to him, and then has him retrieve

S2·E20 Core

Phoney Booths, Part 4

Sep 11, 1965

Simon instructs an entranced Underdog to destroy Polly. As he approaches the trapped reporter, his brain fights the mind control Simon has and finally shatters the bulb above his h

S2·E21 Mytharc

Pain Strikes Underdog, Part 1

Sep 18, 1965

Sweet Polly Purebred calls on Underdog to remind him that it's his birthday, and that she plans to give him a party. Meanwhile, the curator in London wishes to loan the famous Exca

S2·E22 Mytharc

Pain Strikes Underdog, Part 2

Sep 18, 1965

While Underdog is in the hospital for his pain that puzzles the doctors, word of his plight reaches Riff Raff who sees this as an opportunity to steal the Excalibur Sword Collectio

S2·E23 Mytharc

Pain Strikes Underdog, Part 3

Sep 25, 1965

In order to take the swords out of the country, Riff Raff hides them in candles. Meanwhile, Sweet Polly decides to throw a birthday party for Underdog in the hospital. When she goe

S2·E24 Core

Pain Strikes Underdog, Part 4

Sep 25, 1965

Withstanding his pain, Underdog saves Sweet Polly and captures Riff Raff, recovering the Excalibur Swords. However, one of the swords is missing. After an intense search, the missi

S2·E25 Mytharc

The Molemen, Part 1

Oct 2, 1965

When crops from all over begin to disappear, Sweet Polly decides to visit the location of the disappearances. She falls into a hole and lands underground. There she is met with Kin

S2·E26 Mytharc

The Molemen, Part 2

Oct 2, 1965

Upon hearing Polly's cries for help, Underdog races to the her aid by burrowing down into the Earth and reaching the lair of the Mole Men. King Mange unleashes the Mole-hole gun on

S2·E27 Mytharc

The Molemen, Part 3

Oct 9, 1965

Trapped in a cocoon, Underdog instructs Polly to give him the Underdog super vitamin pill hidden in his ring so that he may regain his powers. Once he takes it, they escape and unr

S2·E29 Mytharc

The Flying Sorcerers, Part 1

Oct 16, 1965

King Cup - the evil, spoiled monarch of The Flying Sorcerers' planet - can't get cake that tastes good. So he send his sons Bric and Brac to find a new baking slave. Their efforts

S2·E30 Mytharc

The Flying Sorcerers, Part 2

Oct 16, 1965

Polly is caught by the two royals, but gets off a call to Underdog for help. After seeing his true love being captured by the aliens, Shoeshine Boy runs into a phone booth and beco

S2·E31 Mytharc

The Flying Sorcerers, Part 3

Oct 23, 1965

Polly is brought before King Cup, and he orders Polly to bake five hundred cakes. The cakes are good, but not enough for King Cup and his people. He orders Polly to bake five thous

S2·E33 Mytharc

The Forget-Me-Net, Part 1

Oct 30, 1965

Simon becomes increasingly frustrated with Underdog always stopping him in his endeavors. Cad suggests that the only way to stop him is if he forgot who he was. So Simon embarks on

S2·E34 Mytharc

The Forget-Me-Net, Part 2

Oct 30, 1965

Simon sets out to lure Underdog so that he can try his Forget-Me-Net on him. First he robs a jewelry store, encouraging the people to call for Underdog. However, our hero is detain

S2·E35 Mytharc

The Forget-Me-Net, Part 3

Nov 6, 1965

Underdog finally arrives on the scene to rescue Sweet Polly only to be caught in Simon's Forget-Me-Net. Realizing that if he hears his name he will regain his memory, Simon disguis

S2·E36 Core

The Forget-Me-Net, Part 4

Nov 6, 1965

After completing his giant net to cast over Washington, Simon calls upon Cad to assist in folding the net. Meanwhile, a disguised Underdog meets up on Memory Lane with an amnesia s

S2·E37 Mytharc

Whistler's Father, Part 1

Nov 13, 1965

At the Mid-town Modern Art Muesum, a special showing was being held for the painting "Whistler's Father." As Riff Raff sets out to steal the famous painting, Whistler's Father. To

S2·E38 Mytharc

Whistler's Father, Part 2

Nov 13, 1965

Riff Raff shows his newly formed gang the tactics of guerilla warfare. Sweet Polly Purebred goes to the museum where Underdog is standing by guarding the Whistler's Father painting

S2·E39 Mytharc

Whistler's Father, Part 3

Nov 20, 1965

The next plan is camouflage and sabotage. They wreck the museum's equipment and disguise themselves as two columns, a statue and a wastebasket to grab the painting while Underdog i

S2·E40 Core

Whistler's Father, Part 4

Nov 20, 1965

Riff Raff disguises himself as a museum director and hangs a bag of birdseed with a hole in it on Underdog's back. The seeds leave a trail to Shoeshine Boy's apartment. Fortunately

S2·E41 Mytharc

Simon Says.. No Thanksgiving, Part 1

Nov 25, 1965

One night, in a new scheme, Simon takes Cad to a street corner where he shows him a tricky traffic light control box. On the box are two buttons; one will sound an air raid siren t

S2·E42 Mytharc

Simon Says.. No Thanksgiving, Part 2

Nov 25, 1965

The next morning, the pair are stopped by a cop as they head for the street corner to push the buttons on the tricky control box. The cop tells them that it is Thanksgiving Day and

S2·E43 Mytharc

Simon Says.. No Thanksgiving, Part 3

Nov 25, 1965

After arriving in 1621, Underdog and Sweet Polly meet the pilgrims, and Underdog proves that they're friendly when he does favors for them. Meanwhile, Simon poses as an Indian medi

S2·E45 Mytharc

The Silver Thieves, Part 1

Nov 27, 1965

Armies of ghostlike creatures are stealing all of the Earth's silver. Earth's military forces and the police are powerless to stop these crooks because the creatures disable the au

S2·E46 Mytharc

The Silver Thieves, Part 2

Nov 27, 1965

An electric shock from one of the silver thieves paralyzes Underdog. Everyone in the city tries to revive him, but their efforts fail to bring him back. In desperation, they pour s

S2·E47 Mytharc

The Silver Thieves, Part 3

Dec 11, 1965

King Cumulus Regulus and his Cloudmen shock Underdog and Polly into paralyzation and the pair are placed on a conveyor belt, to be melted down and turned into silver powder. The Cl

S2·E49 Mytharc

RiffRaffville, Part 1

Dec 18, 1965

Riff Raff and his mob have tried 9 different crimes in the last month but Underdog stopped them all. So Riff decides to move out West. He leaves the city and takes over a little we

S2·E50 Mytharc

RiffRaffville, Part 2

Dec 18, 1965

With all the crooks in Riffraffville, Underdog does simple things like getting cats out of trees. He falls and his ring gets bent. Sweet Polly Purebred offers to take it to fixed b

S2·E51 Mytharc

RiffRaffville, Part 3

Dec 25, 1965

Underdog sets out to find Sweet Polly. He looks on a train, in a bank and at a cattle ranch. At the train and bank, his energy is drained by bombs set by Riff's gang. At the ranch,

S2·E52 Core

RiffRaffville, Part 4

Dec 25, 1965

A western song plays during this cartoon as Riff Raff challenges Underdog to a gunfight at noon. The townspeople are too scared to help Underdog- it looks like the end- but Sweet P

S2·E53 Mytharc

The Tickle Feather Machine, Part 1

Jan 1, 1966

After many attempts of trying to take over the world failing, Simon and Cad are out of ideas. However, they spot voting posters all over the place, and that gives Simon the idea to

S2·E54 Mytharc

The Tickle Feather Machine, Part 2

Jan 1, 1966

Back at his lab, Simon will be sure that he will win even with two votes - by making sure nobody else votes. Simon tries a series of rays on Cad that affect his mood, such as cryin

S2·E55 Mytharc

The Tickle Feather Machine, Part 3

Jan 8, 1966

Simon uses his tickle feather machine on some people that cause them to laugh. Sweet Polly notices the strange laughing phenomenon when she interviews voters who just walk by and l

S2·E56 Mytharc

The Tickle Feather Machine, Part 4

Jan 8, 1966

With Simon successfully being elected as a dictator, and Underdog not being able to stop him, he demands Cad to bring him a banker, a builder, a baker, and Polly. He gives the four

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