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"Red Action 3: Grudgement Day" is the 15th episode of Season 3 of OK K.O.! Let's Be Heroes and the 107th episode overall.

Official Synopsis

K.O. and Enid attempt to prevent a mysterious power battle between Rad and Red Action.[1]






  • The episode confirmed Enid and Red Action's relationship is romantic.

Production Notes

  • Eleisiya Arocha is a guest writer and storyboard artist for the episode, filling in for Stevie Borbolla when they were on a trip to Japan at the time the episode was in production.[2]


  • K.O. and Enid went back to the past in the episodes "You're Everybody's Sidekick" and "Plaza Prom".
  • It was strongly hinted throughout the episode that Rad still had feelings for Enid and the grudge he had with Red Action came from the fact that she and Enid were now lovers. This seems to have been disconfirmed in the end as Rad said he actually disliked the clip that she recorded in "You're Everybody's Sidekick", and became friends with Red Action again after the past was changed.
    • The latest episode where Rad was previously seen getting along fine with Red Action was in "Dark Plaza", which implied that Rad must had seen the clip after that episode prior to this episode.
  • When K.O. and Enid went back to the past once, K.O. notices his social media feed has a prom picture of Potato and Colewort meaning that Rad sent a friend request to Red Action after "Plaza Prom".
  • K.O. uses his referee outfit from "Are You Ready for Some Megafootball?!" to stop Red Action and Rad fighting.

Cultural References

  • The episode's title is a reference to the 1991 film Terminator 2: Judgement Day.
  • Red Action's story and character makes a few references to The Terminator.
    • She's a combat cyborg sent from the future.
    • She rides a motorcycle, just like the main character of the movie.



Click to view the gallery for
Red Action 3: Grudgement Day.


View the episode's transcript here.

References List

Pilot Lakewood Plaza Turbo
Shorts KOEnidRadCarolEnid's Bad DayBarrels and CratesRad CriesRad's VanCommercialPower-Up!!!DendyBoxmore InfomercialLet's Do It Together!
Season 1 A: Let's Be HeroesLet's Be FriendsYou're Everybody's SidekickWe Messed UpJethro's All YoursYou're Level 100!I Am DendyPlaza ShortsSibling RivalryYou Get MeDo You Have Any More in the Back?Just Be a PebblePresenting Joe CuppaMy Dad Can Beat Up Your DadWe've Got PestsYou Are RadLegends of Mr. GarWe Got HackedPlazalympicsWe're CapturedKnow Your MomFace Your FearsEverybody Likes Rad?You Have to CarePlaza PromT.K.O.

B: Stop Attacking the PlazaWe've Got FleasOne Last ScoreSecond First DateNo More Pow CardsLet's Watch the PilotA Hero's FateGlory DaysParents DayLet's Have a StakeoutThe Power Is Yours!Rad Likes RobotsKO's Video ChannelVillains' Night OutVillains' Night InBack in Red ActionOK Dendy! Let's Be K.O.!Let's Take a MomentRMS & Brandon's First EpisodeMystery Science Fair 201XLet's Not Be SkeletonsLad & LogicAction NewsYou're in Control

Season 2 A: Seasons ChangeLord Cowboy DarrellHope This FliesThe Perfect MealPlaza Film FestivalBe a TeamMy Fair CarolPoint to the PlazaThe So-Bad-icalLet's Watch the Boxmore ShowYour World is an IllusionRed Action to the FutureTKO's HouseSpecial DeliveryDendy's PowerWisdom, Strength, and CharismaBittersweet RivalsAre You Ready for Some Megafootball?!Mystery SleepoverFinal Exams

B: Soda GenieCarolQuestBoxman CrashesCrossover NexusPlaza AloneAll in the VillainyMonster PartyGarQuestSuper Black FridayWhacky JaxxyzSidekick ScoutsProject Ray WayI Am JethroBeach EpisodeRad's Alien SicknessKO's Health WeekGar Trains Punching JudyOK A.U.!Dark Plaza

Season 3 We Are HeroesKO, Rad, and Enid!Let's Meet SonicTKO Rules!K.O. vs. FinkChip's DamageThe K.O. TrapWhatever Happened to... Rippy Roo?Planet XDeep Space VacationBig RevealRadical RescueYou're a Good Friend, KOLet's Get ShadowyRed Action 3: Grudgement DayCarlDendy's Video ChannelLet's Fight to the EndThank You for Watching the Show