Every season of OK K.O.! Let's Be Heroes ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of OK K.O.! Let's Be Heroes!

When K.O. tags along with his mom to work, he discovers the convenience store next door is his key to becoming a great hero.

Let's Be Heroes

K.O. wants to be as heroic as his new friends Rad and Enid and decides the way to do so is to sneak into Lord Boxman's lair and take him on by himself.

Let's Be Friends

K.O. sets out to prove to Enid that helping people is rewarding, but then he meets some kids who take advantage of his helpful nature.

You're Everybody's Sidekick

K.O., Rad and Enid accidentally break one of Mr. Gar's prized possessions!

We Messed Up

K.O. battles one of Lord Boxman's robots all by himself, only to be faced with bigger and bigger versions of, before learning that they share something in common.

Jethro's All Yours

When K.O. finally gets a Hero Card, he finds out he's level 100, instantly making him a celebrity and the idol of everyone.

You're Level 100!

When a new robot, Raymond, defeats the three heroes to steal the sign to Gar's, K.O. teams up with Darrell and Shannon to get it back.

Sibling Rivalry

K.O. helps a strange girl from school, Dendy, get the parts she needs to repair her high tech backpack.

I Am Dendy

Rad claims to know everything, which impresses K.O. and annoys Enid. However, his knowledge is put to the test when the group must venture into the mysterious backroom.

Do You Have Any More in the Back?

K.O. gets into a verbal fight with Chameleon Jr. ending in a rendezvous between their parents. While Carol tries to resolve things peacfully, Chameleon Sr. isn't so willing.

My Dad Can Beat Up Your Dad!

Enid gets turned to stone by a Wizard because he believes she displayed rude behavior towards him. K.O. tries his best to turn her back to normal, as he thinks he is the only one who can because he "gets her".

You Get Me

When K.O. forgets his name tag, Rad lets him use his, resulting in everyone thinking K.O. is Rad. Along the way, K.O. discovers some personal things about Rad causing him to think that there's more to him than he puts off.

You Are Rad

K.O. is tired of being small, so Rad gives him a candy bar that can increase his size. However, K.O. soon realizes that being big isn't all it's cracked up to be, when he accidentally hurls Mr. Gar's car keys in the sewer while trying to help him (due to his increased size), and must shrink to be able to retrieve them.

Just Be a Pebble

Joe Cuppa, Lakewood Plaza Turbo's local comedian, is all washed up and jobless. K.O., Rad and an unenthusiastic Enid try to help by hiring him to work at Gar's, which is just in time for Shannon's attack on the Bodega.

Presenting Joe Cuppa

K.O. and Rad must run the Bodega and take care of themselves while Enid hangs out with 3 tiny pest-like self proclaimed cool kids that break in through the pipes.

We've Got Pests

Rad and Enid reminisce about when they started working at the Bodega, and discovered how amazing Mr. Gar really is. Later, Crinkly Wrinkly barges in to tell the tale of the Plaza's origin.

Legends of Mr. Gar

After some misdirection from Brandon, K.O. decides to reunite Carol with one of her archenemies for Mother's Day.

Know Your Mom

Boxman captures K.O., Enid and Rad, but seems a little distracted.

We're Captured

Our heroes play an arcade game that makes them face their greatest fears.

Face Your Fears

When Rad posts a video that goes viral, he tries to milk his 15 minutes of fame.

Everybody Likes Rad?

When an old friend of Enid's comes to town, she gets the opportunity to right an ancient wrong.

You Have to Care

When Rad throws his own prom at the Plaza, K.O. tries to makes sure it goes off without a hitch.

Plaza Prom

Love is in the air and Cupid arrives to resolve romantic tension around the plaza.

Second First Date

K.O. decides to help Ginger recapture her glory days.

One Last Score

Searching for power, K.O. accepts the help of a mysterious figure; the heroes band together to save the plaza from a new menace.

T.K.O.

Boxman must go 24 hours without attacking Lakewood Plaza Turbo.

Stop Attacking the Plaza

K.O., Rad, and Enid have to think outside the box to defeat Mikayla, a new animalistic robot.

We've Got Fleas

When K.O. realizes Pow Cards exclude Dendy due to her Kappa heritage, he’s devastated by the clear discrimination. So the two of them decide to sneak into the factory that makes the Pow Cards to see if they can change it.

No More Pow Cards

When a long-lost hero stumbles into Gar’s, K.O. agrees to help him complete his years long quest.

A Hero's Fate

Let's Have a Stakeout

When Rad and Enid discover that K.O. has been posting embarrassing videos online, they force him to erase them.

KO's Video Channel

Rad Likes Robots

When Lord Boxman is trashing the Plaza with pollutants, K.O., Rad, and Enid recruit Captain Planet to help.

The Power Is Yours

Glory Days

K.O. takes part in Lakewood Plaza Turbo's annual Plazalympics competition.

Plazalympics

While trying to fix a malfunctioned mop, K.O. clicks a pop-up on Dendy's "hackpack", causing a glitch virus to invade the Bodega and infect shoppers into glitched CGI zombies.

We Got Hacked

It’s Parents' Day at Lakewood Plaza Turbo!

Parents' Day

Enid teams up with Red Action to take on a menace from the future.

Back in Red Action

Mr. Gar and Carol fight a villain from their past.

Let's Take a Moment

Lord Boxman forces his way into an exclusive Villains party.

Villains' Night Out

While Boxman and Venomous are out, Fink is reluctantly babysat by Darrell and Shannon.

Villains' Night In

K.O., Rad, and Enid watch the Lakewood Plaza Turbo pilot.

Let's Watch the Pilot

K.O. helps Dendy with her science fair project.

Mystery Science Fair 201X

A Real Magic Skeleton discovers a new job opportunity.

RMS & Brandon's First Episode

K.O. learns the story of how Mr. Logic came to the plaza.

Lad & Logic

OK Dendy! Let's Be K.O.!

K.O.'s monologue details his journey to being a hero.

Dynamite Watkins reports on a day at Gar's.

Lord Boxman explains where all the robots come from.  K.O., Rad, and Enid try to figure out Mr. Gar's adventure.

Enid and Rad switch jobs.

Plaza Shorts

When a charismatic huckster shows up to the plaza, the product he’s selling turns everything upside down.

Let's Not Be Skeletons

Dynamite Watkins has to go extreme lengths breaking a new story.

Action News

K.O. teams up with Beardo to make the perfect meal for Carol.

The Perfect Meal

Rad attempts to upgrade his van and make it fly.

Hope This Flies

Dendy tries helping K.O. control T.K.O. while Lord Boxman reveals his progeny.

You're in Control

When our heroes return from time off, KO is horrified to discover that things have changed.

Seasons Change

Everyone is forced to deal with some major changes at Boxmore.

Lord Cowboy Darrell

When the plaza has its own film festival, KO, Enid and Rad are sure their entry will win!

Plaza Film Festival

Mr. Gar brings in some team building experts to help KO, Enid and Rad.

Be a Team

KO, Enid and Rad team up to help Carol out with a special occasion.

My Fair Carol

Our heroes discover that the Boxmore security camera feed is the most entertaining thing ever.

Let's Watch the Boxmore Show

KO tries to help a hero in need and ends up needing some help of his own.

Your World Is an Illusion

When a new substitute shows up, KO and Dendy decide they need to get their old teacher back.

The So-Bad-Ical

When a Gloop infestation takes over the plaza, Point arrives to contain the situation.

Point to the Plaza

TKO's House

When Red Action is called to the future for an epic battle, Enid is unsure of what to do.

Red Action to the Future

Dendy and KO discover a fun and exciting new POW Card exploit.

Dendy's Power

Enid and Rad go on a road trip to deliver a package.

Special Delivery

When Enid goes to a new school, KO sets out to make sure she fits in.

Wisdom, Strength, and Charisma

In the Cartoon Network City, K.O. is summoned by the villain Strike who plans on eradicating all the heroes from the Cartoon Network Universe. Now K.O. must team up with Garnet from Steven Universe, Ben Tennyson from Ben 10 and Raven from Teen Titans Go! to stop him.

Crossover Nexus

Enid is faced with a choice when her old friends from Ghoul School show up.

Monster Party

After being forced to work on a holiday, KO, Rad and Enid take a stand.

Super Black Friday

KO, Enid and Rad team up with an unlikely ally to take on an unlikely foe.

Final Exams

Carol is forced to bring KO along as she defends the Plaza from a new threat.

CarolQuest

When KO, Rad, and Enid find a soda bottle with a genie in it, they get more than they bargained for.

Soda Genie

It's KO's birthday, and Rad and Enid want to make sure everything goes perfectly.

Plaza Alone

Lord Boxman crashes at Venomous’ lair and inserts himself into his villainous affairs.

Boxman Crashes

KO, Rad and Enid are confused to find the villains are more interested in battling each other than them.

All in the Villainy

KO gets more than he bargained for when he gets a sidekick.

Sidekick Scouts

When the hot new toy trend of Whacky Jaxxyz comes to Lakewood, KO says goodbye to his POW Cards.

Whacky Jaxxyz

When Raymond starts his own fashion line, Rad and Drupe decide to make something even better.

Project Ray Way

When a different kind of Jethro rolls off the assembly line, the plaza is in for some surprises.

I Am Jethro

GarQuest

With a big fight coming up, Punching Judy turns to KO and Gar to help her prepare.

Gar Trains Punching Judy

Surf’s up on a wacky beach adventure when our heroes are challenged to the ultimate beach battle.

Beach Episode

An evil warlock takes our heroes to a strange alternate universe.

OK A.U.!

KO spends a week dispensing healthy tips to everyone in the plaza.

KO’s Health Week

When our heroes are infected with a virus, Rad stubbornly refuses to back down.

Rad’s Alien Sickness

KO and the heroes of the Plaza fight to save Lakewood Plaza Turbo with everything on the line.

Dark Plaza

K.O., Rad and Enid are now full time heroes at the Bodega, with new hires replacing their old positions. Mr. Gar and Carol send the trio out while Dendy acts as their off sight support. While everyone is happy with the new set up, K.O. feels that he is not contributing much and is concerned when a dragon begins attacking Ted Viking and Foxy's house.

We Are Heroes

When Dynamite Watkins confronts K.O., Rad and Enid on their team name, they realize that they do not have one. They decide to come up with some sort of gimmick, with Drupe's help, so that they can think of a cool name. However they cannot decide on their costumes which is made more infuriating when Raymond arrives to once again mock them.

KO, Rad, and Enid!

Carol decides to let K.O. take care of himself for the day while she is out. As a friendly gesture, K.O. visits T.K.O. inside his brain and they decide to switch places for fun. However, T.K.O. ends up being rowdy and breaking all the rules that Carol has set up. As K.O. realizes the error he has made, he is forced to make a harsh decision against T.K.O.

TKO Rules!

As the public wonders what has become of Chip Damage, Elodie recruits K.O. in reactivating the Chip Damage robot in an attempt to improve on him and bring hope back to everyone. In their haste, they end up damaging Chip Damage's image and it takes an intervention from retired hero, Dr. Greyman, to remind them what makes an actual hero.

Chip's Damage

K.O. loves his mom Carol, but Fink arrives to turn that all around by making fun of him and calling him a "mama's boy". Feeling miserable, K.O. gets help from his "inner monologue," which is actually Shadowy Figure, to get even with Fink by getting angry. K.O. channels his anger to battle her, but it only seems to make her even more malicious.

K.O. vs Fink

K.O., Rad, and Enid break into Boxmore to get back their doors when they find themselves in a box shaped room that does not have any doors or windows. As they wait it out, they begin to realize that something is not right. Rad and Enid are, in fact, replaced with goo clones and K.O. must now get to the bottom of this mysterious situation.

The K.O. Trap

Rippy Roo makes a sudden appearance at the plaza and immediately begins catching up with Carol by revealing what she had been doing all these years after leaving P.O.I.N.T. Meanwhile, K.O. ventures into Rippy Roo's pouch after a creature called a Mecha Maw steals his prized binder of very rare Pow Cards.

Whatever Happened to... Rippy Roo?

Rad goes to Planet X to join his family reunion. Upon arriving he is shocked to discover that the majority of his family are nerds. He later learns that his grandfather, Coach, is a jock and that X-ians have been split into nerds and jocks after humans visited the planet years ago and shared many of their existing culture with them.

Planet X

Noticing that K.O. and Enid are sad that Rad is still on Planet X, Mr. Gar gives them his old space bike and tells them to take a vacation. The two arrive only to learn that the shape shifting Cosma has devoured the planet whole. As K.O. and Enid desperately attempt to rescue the planet from being digested, Rad and his family do not seem to care.

Deep Space Vacation

The Bodega is unexpectedly visited by Sonic the Hedgehog and Miles "Tails" Prower, who aid K.O. in rescuing his friends from Lord Boxman. As Sonic tries to help K.O. with new techniques, Tails feels left out especially when Sonic starts calling him his "little buddy". When K.O. gets roboticized, Sonic must return him to normal.

Let's Meet Sonic

Carol casually reveals to K.O. that Laserblast is his father. He is excited at the prospect that he has "hero blood" in him and takes on another mission from Mr. Gar to confront Lord Boxman and Professor Venomous. However, Venomous reveals that he is K.O.'s father and soon a distraught Carol arrives to learn the origin of his villainous transformation.

Big Reveal

Rad starts feeling uncomfortable when K.O. begins exhibiting negative behavior that he picked up from him, Mega Football Baby and Bellbeefer. He tries to hide his love for kittens as well as him volunteering at the local animal shelter. When Mikayla infiltrates the shelter and begins attacking everyone, Rad has to convince K.O. to drop the macho thing.

Radical Rescue

Carol drops K.O. off at Boxmore for the weekend so that he can spend time with Professor Venomous. K.O. is disappointed to learn that Venomous is nothing at all like him, so he suggests that they look for Shadowy Figure so that they can "destroy" him. As they look for clues on where he might be, Fink is holding a secret back about her villainous boss.

Let's Get Shadowy

When the power goes out at school, K.O. and Dendy go out and investigate. K.O. feels bad for Dendy because the other students continuously praise him, but look down on her. They discover that Small Calf Demon is behind the power outage, but when K.O. gets kidnapped by him, Dendy must step into action and use her techno abilities to defeat the villain.

You're A Good Friend, KO

Animated comedy set in the futuristic year of 201X, where the world is populated by video game and manga-esque characters.

The Best Seasons of OK K.O.! Let's Be Heroes

The Best Seasons of OK K.O.! Let's Be Heroes

Season 1

Season 3

Season 2