The WORST episodes of Underdog

Every episode of Underdog ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Underdog!

There's no need to fear! Underdog is here! When criminals in this world appear And break the laws that they should fear And frighten all who see or hear The cry goes up both far and near For Underdog! Underdog! Underdog! Underdog! Speed of lightning, roar of thunder Fighting all who rob or plunder Underdog. Underdog! When in this world the headlines read Of those whose hearts are filled with greed Who rob and steal from those who need To right this wrong with blinding speed Goes Underdog! Underdog! Underdog! Underdog! Speed of lightning, roar of thunder Fighting all who rob or plunder Underdog. Underdog! ** The original airing order of the episodes is not available, but if you uncover it or have some info to add, please submit it. Thanks. **

Last Updated: 1/14/2026Network: NBCStatus: Ended
The Phoney Booths (4)
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#1 - The Phoney Booths (4)

Season 2 - Episode 20 - Aired 9/11/1965

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 head breaking free of the mind control. Polly informs Underdog that Simon is behind the Phoney Booths. They head out to Simon's lab to stop him. Seeing them approach, Simon instructs the colonel he has in his power to shoot Underdog down. Underdog puts Polly down to fight the army. One of the projectiles Underdog deflects, lands on the colonel's trance bulb above his head and frees him of Simon's power. Underdog takes several projectiles and blows up Simon's lab and sends a fleeing Simon and Cad hurling into the air landing in a tree.

The Magnet Men (1)
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#2 - The Magnet Men (1)

Season 2 - Episode 13 - Aired 3/6/1965

The Magnet Men (2)
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#3 - The Magnet Men (2)

Season 2 - Episode 14 - Aired 3/6/1965

The Magnet Men (3)
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#4 - The Magnet Men (3)

Season 2 - Episode 15 - Aired 3/13/1965

The Magnet Men (4)
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#5 - The Magnet Men (4)

Season 2 - Episode 16 - Aired 3/13/1965

The Gold Bricks (1)
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#6 - The Gold Bricks (1)

Season 2 - Episode 9 - Aired 2/20/1965

The Gold Bricks (2)
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#7 - The Gold Bricks (2)

Season 2 - Episode 10 - Aired 2/20/1965

The Gold Bricks (3)
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#8 - The Gold Bricks (3)

Season 2 - Episode 11 - Aired 2/27/1965

The Gold Bricks (4)
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#9 - The Gold Bricks (4)

Season 2 - Episode 12 - Aired 2/27/1965

Pain Strikes Underdog (2)
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#10 - Pain Strikes Underdog (2)

Season 2 - Episode 22 - Aired 9/18/1965

Pain Strikes Underdog (3)
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#11 - Pain Strikes Underdog (3)

Season 2 - Episode 23 - Aired 9/25/1965

Pain Strikes Underdog (4)
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#12 - Pain Strikes Underdog (4)

Season 2 - Episode 24 - Aired 9/25/1965

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The Phoney Booths (1)
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#13 - The Phoney Booths (1)

Season 2 - Episode 17 - Aired 9/4/1965

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 do. Simon demonstrates by deceiving the milkman that his office wants him to call and directs the unsuspecting milkman into one of the Phoney Booths. The booth jumps and spins and when it opens, the milkman emerges in a trance repeating 'I will do what Simon says'. Simon instructs the milkman to destroy all his milk bottles, then remotely tells him to drive his milk truck into a pole. Then he tells him to go home and await further orders.

The Phoney Booths (2)
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#14 - The Phoney Booths (2)

Season 2 - Episode 18 - Aired 9/4/1965

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 ordered to bring his train to Simon's lab. A colonel steps into the booth and is ordered to bring the army to Simon Bar Sinister's house. On a college campus, students try to see how many they can fit into a booth, but of course, it's a Phoney Booth. Each emerging student is told to do a task. News finally gets to Shoeshine Boy who steps into a booth to become Underdog, but, it is a Phoney Booth.

The Phoney Booths (3)
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#15 - The Phoney Booths (3)

Season 2 - Episode 19 - Aired 9/11/1965

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 the Empire State Building. Meanwhile, O.J. Squeeze, Sweet Polly's boss, informs her that Underdog is in Simon's power. Polly takes it upon herself to go out with an axe and destroy the booths. When Simon catches wind of this, he sends Underdog out to destroy Sweet Polly. Underdog arrives at Polly's location and she is trapped.

Pain Strikes Underdog (1)
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#16 - Pain Strikes Underdog (1)

Season 2 - Episode 21 - Aired 9/18/1965

Underdog is enlisted to protect the Excalibur Sword Collection from RiffRaff

A New Villain (2)
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4.50
2 votes

#17 - A New Villain (2)

Season 3 - Episode 26 - Aired 11/5/1966

Flim and Polly agree that humble, loveable Shoeshine boy would be able to make sense of the riddle 'A Rhyme in Time Saves Nine'. Shoeshine deduces that 'rhyme' refers to Underdog, since he always talks in rhyme, 'time' refers to clock, Polly suggests Big Ben, but says that that's in London. Shoeshine deduces, what the biggest 'Ben' is around in the city, to which Polly responds 'Ben's Jewelry Store' (not Big Ben). As for 'Nine' Shoeshine deciphers that there are nine players on a baseball team and baseball is played on a diamond. Polly then sums up the solution of the riddle that if Underdog gets to Ben's Jewelry Store he can save the diamonds. She then tells Shoeshine to hurry and find Underdog. Shoeshine immediately rushes to the nearest phone booth and becomes Underdog (no waiting) Prior to arriving the Electric Eel demonstrates to Ben and the others he is holding up, the trap of an electrical field he has waiting for Underdog. When Underdog arrives, he steps into the trap and can't break free of the electrical field.

Whistler's Father (4)
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6.00
1 votes

#18 - Whistler's Father (4)

Season 2 - Episode 40 - Aired 11/20/1965

Whistler's Father (3)
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6.00
1 votes

#19 - Whistler's Father (3)

Season 2 - Episode 39 - Aired 11/20/1965

Fearo (1)
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6.50
2 votes

#20 - Fearo (1)

Season 1 - Episode 16 - Aired 11/21/1964

Sweet Polly Squeeze boards a ship to travel to a south sea island to investigate the world's biggest monster "Fearo the Ferocious".

Whistler's Father (1)
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7.00
1 votes

#21 - Whistler's Father (1)

Season 2 - Episode 37 - Aired 11/13/1965

March of the Monsters
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7.00
7 votes

#22 - March of the Monsters

Season 1 - Episode 2 - Aired 10/3/1964

An army of giant robots take over the city and capture Polly. Underdog foils the monsters by using his high-pitched voice to destroy the robots' electronic brains. The robots aren't the only thing destroyed, but so is all of the city's glassware.

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Go Snow (3)
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7.00
1 votes

#23 - Go Snow (3)

Season 1 - Episode 6 - Aired 10/17/1964

Zot (2)
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7.00
4 votes

#24 - Zot (2)

Season 1 - Episode 9 - Aired 10/31/1964

The story of Zot continues with King Klobber searching the galaxy and then the universe for the strongest warrior. They discover Underdog on an insignificant planet named Earth. King Klobber sends a fleet of spaceships to capture underdog and return him to the planet Zot.

Zot (4)
star
7.00
4 votes

#25 - Zot (4)

Season 1 - Episode 11 - Aired 11/7/1964

The story of Zot concludes, as Underdog and the princess are about to be married. Just at that moment the evil two-headed dragon attacks the city. Underdog defeats the dragon and saves the city. King Klobber grants underdog a favor and he asks to be allowed to return to Earth without marrying his daughter. The King agrees and the princess decides she was in love with the Prime minister of Zot all along and all are happy.