Underdog
We checked 8 streaming services in India on 04 Jun 2026 at 08:10 IST
About
Underdog, also known as The Underdog Show, is an American Saturday morning animated television series that ran from October 3, 1964, to March 4, 1967, starting on the NBC network until 1966, with the rest of the run on CBS, under the primary sponsorship of General Mills, for a run of 62 episodes. It is one of the early Saturday morning cartoons. The show continued in syndication until 1973. Underdog, Shoeshine Boy's heroic alter ego, appears whenever love interest Sweet Polly Purebred is being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyming couplets, as in "There's no need to fear, Underdog is here!"
Cast
Episodes
Season 1
Safe Waif
Underdog breaks out of the phone booth, and hears the cries for help again. Underdog flies to the lady, who tells him that her little boy has been accidentally locked in a bank vault. With only this information, Underdog flies off toward the bank. He reaches a bank, crashes in, much to the shock of the occupants, and then proceeds to rip open the giant door to the vault. The bank president blows up at Underdog, saying that he's got the wrong bank! So, Underdog flies to the correct bank, and attempts to rescue the boy. But at first, nothing he tries works. He crashes through the vault door, only to crash through the whole building and the one next door as well. He tries using his X-ray vision to locate the boy, but instead, starts a fire! All the people in the bank are in a panic now! Underdog uses his atomic breath to blow out the fire, and in the process, blows virtually the whole building away! But at least the mother's little boy is found all safe and sound.
March of the Monsters
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.
Simon Says
Simon, a mad scientist, creates a camera. This is not some ordinary camera however. When he takes someone's picture, the freezes them in the photograph!
Go Snow Part 1
Simon Bar Sinister creates a new super weapon: the Go-Snow Gun. The gun freezes people, turning them into snow people. Simon and his Henchman Cad take over the First National Bank, holding the bank President, his staff and customers prisoner.
Go Snow Part 2
After Simon and Cad turn the bank president, his staff and customers into snow people, they rob the bank of all its assets. Then they crash a party at a mansion, turn the band into snowmen and rob the guests there. Later, after sneaking into Simon's lab, Sweet Polly Purebred is captured by the two villains. Simon prepares to make Polly his loveliest snow woman.
Go Snow Part 3
Capturing Polly in their lab, Simon and Cad are about ready to turn her into a snow woman. But then, Cad comes up with an even more insidious plot: he suggests Polly broadcast an ultimatum to the city: either turn total control of the city over to Simon Bar Sinister and Cad within 24 hours or be frozen to death. Intrigued by his henchman's plan, the two villains take the TV reporter to the center of the city and force her to broadcast his ultimatum. Underdog arrives at the scene to stop Simon, but is frozen solid by the Go Snow Gun.
Go Snow Part 4
Simon has frozen poor Underdog solid. All efforts to defrost Underdog fail. Somehow, Underdog defrosts himself and immediately flies around Simon and Cad so fast the two villains get dizzy. They fall down unconscious and are turned over to the law. Underdog then rescues the frozen people by using his super-hot atomic breath, defrosting them all in seconds. The episode ends with a group of people on the street saying "It's a plane," "It's a bird," "It's a frog!" & a man saying "A frog?" with Underdog saying: "Not plane, nor bird or even frog, it's just little old me, Underdog." before crashing into a building.
Zot: Part 1
Underdog is having an average day. He foils a bank robbery, rescued Sweet Polly and made himself useful across the world. Meanwhile, a million, million miles away on the planet Zot, King Klobber is upset. It seams that his daughter the princess wants to get married and can't find anyone suitable.
Where does Underdog rank today?
Underdog is #2233 on the CineFlixo Daily Streaming Charts today.
- Highest: #2233
- Top 10: 0 days
- Top 100: 0 days
Watch Underdog Online Free — All Episodes in HD
Stream Underdog online free in HD on CineFlixo. A popular animation and comedy series originally produced in Inglés and released in 1964, it's earned a solid 6.4/10 from 24 viewers worldwide.
About Underdog
Underdog, also known as The Underdog Show, is an American Saturday morning animated television series that ran from October 3, 1964, to March 4, 1967, starting on the NBC network until 1966, with the rest of the run on CBS, under the primary sponsorship of General Mills, for a run of 62 episodes. It is one of the early Saturday morning cartoons. The show continued in syndication until 1973. Underdog, Shoeshine Boy's heroic alter ego, appears whenever love interest Sweet Polly Purebred is being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyming couplets, as in "There's no need to fear, Underdog is here!" Across 3 seasons and 129 episodes, originally airing on NBC.
Underdog Cast and Characters
The cast features Wally Cox, Sandy Becker, Kenny Delmar, George S. Irving, and Mort Marshall. Their performances are a major reason Underdog has built such a passionate audience.
Where to Watch Underdog Online
On CineFlixo you can watch Underdog free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Underdog NowWhy People Are Watching Underdog
Underdog flies under the radar but it deserves your attention. What makes it work is sharp comedic timing that lands consistently. If you enjoy Inglés storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Underdog
Where can I watch Underdog online for free?
You can watch Underdog online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Underdog have?
Underdog has 129 episodes across 3 seasons. All episodes are available to stream right here on CineFlixo.
Is Underdog good? What's the rating?
Underdog holds a 6.4/10 rating based on 24 reviews — a solid pick if the genre interests you.
Who is in the cast of Underdog?
The main cast includes Wally Cox, Sandy Becker, Kenny Delmar, and George S. Irving, plus a strong supporting ensemble.
Is Underdog available in Inglés?
Yes — Underdog was originally produced in Inglés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Underdog released?
Underdog first aired in 1964.
Do I need an account to watch Underdog on CineFlixo?
No. CineFlixo is free and you can watch Underdog without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Underdog, check out Teenage Mutant Ninja Turtles, Space Sentinels, Fantastic Four: World's Greatest Heroes, Duck Dodgers, and Underdog and the Canine Defenders.
Frequently Asked Questions
Where can I watch Underdog for free?
You can watch Underdog online for free on CineFlixo. All 129 episodes across 3 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Underdog have?
Underdog currently has 3 seasons and a total of 129 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on CineFlixo and continue watching from where you left off.
What is Underdog about?
Underdog, also known as The Underdog Show, is an American Saturday morning animated television series that ran from October 3, 1964, to March 4, 1967, starting on the NBC network until 1966, with the rest of the run on CBS, under the primary sponsorship of General Mills, for a run of 62 episodes. It is one of the ea… It belongs to the Animation, Comedy genres.
In which language is Underdog originally available?
Underdog was originally produced in English. On CineFlixo the show is available in its original English audio, which is the most authentic way to experience the dialogue, music, and performances. Check the player options on the watch page for available subtitle tracks.
When was Underdog first released?
Underdog first premiered on October 3, 1964 (1964). The series has since concluded its run.
All Seasons
Browse every season of Underdog — 3 seasons in total
💬 Comments0
Join the conversation
Share your thoughts, rate episodes, and connect with other fans
Hey everyone! 👋 Welcome to the discussion.
Feel free to share your thoughts about this series — what did you love, what surprised you, which episodes are your favorites? 🎬
Got ideas for what we should add to CineFlixo? Want to suggest a series? Drop it here! We read every comment ✨
Similar English Animation Shows
More English series like Underdog you may enjoy
Recommended for You
Based on this series
