Season 3
Let's start the show!
Synopsis
Watch OK K.O.! Let's Be Heroes Season 3 online on iFILM — 19 episodes closing out Cartoon Network's action-comedy about a kid set on becoming a great hero. Season 3 makes it personal.
The biggest moment lands mid-season: K.O. finds out who his father is. Rad flies back to his home planet and returns shaken by what alien society actually looks like from the inside. K.O. and Enid take a space vacation that goes sideways fast. TKO is still lodged in K.O.'s head — the two literally swap places for a day, and neither finds it comfortable. The back half builds toward a plaza-wide tournament where the prize turns out to be far more than a trophy.
At 19 episodes, this season runs tighter and lands heavier than anything that came before it. Stream OK K.O.! Let's Be Heroes Season 3 online on iFILM — all episodes, no waiting.
19 episodes
S3·E1We Are Heroes
KO struggles with his upgraded role as a member of the hero team.
S3·E2KO, Rad, and Enid!
When confronted with their lack of a team gimmick, KO, Rad, and Enid wonder what their group identity should be.
S3·E3TKO Rules!
KO and TKO decide to swap places for the day.
S3·E4Chip's Damage
Elodie enlists KO to help figure out what to do about Chip Damage.
S3·E5K.O. vs Fink
When Fink taunts KO for being a momma's boy, he grapples with newfound insecurity about it.
S3·E6The K.O. Trap
KO, Rad, and Enid are caught in an especially devious trap.
S3·E7Whatever Happened to... Rippy Roo?
Rippy Roo visits the plaza.
S3·E8Planet X (1)
When Rad returns to his home planet, he learns a shocking truth about alien society.
S3·E9Deep Space Vacation (2)
When Gar lets KO and Enid take a vacation to outer space, they get more than they bargained for.
S3·E10Let's Meet Sonic
When world-class hero Sonic the Hedgehog visits the plaza, he teams up with KO to save the day.
S3·E11Big Reveal
K.O. finds out who his father is.
S3·E12Radical Rescue
Rad is forced to reconsider his identity when KO starts taking on some of his traits.
S3·E13Let's Get Shadowy
KO teams up with an unlikely ally to take on an old foe.
S3·E14You're A Good Friend, KO
KO brings Dendy along for a hero mission in order to cheer her up.
S3·E15Red Action 3: Grudgement Day
KO and Enid attempt to prevent a mysterious power battle between Rad and Red Action.
S3·E16Carl
A pleasant weekend goes awry when a monster attacks.
S3·E17Dendy's Video Channel (1)
Dendy tries to update KO's Video Channel for him, but has trouble finding something to post.
S3·E18Let's Fight to the End (2)
When a fighting tournament is announced at the Plaza, there is more at stake than meets the eye.
S3·E19Thank You for Watching the Show (3)
When KO finds moments of his life slipping by, he begins to suspect something weird is going on.
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