<P> OK K.O.! Let's Be Heroes (also known simply as OK K.O.!) is an American action comedy animated series created by Ian Jones - Quartey (known for his work on Adventure Time, Steven Universe, Secret Mountain Fort Awesome, and Nockforce) for Cartoon Network . The show is based on his pilot short Lakewood Plaza Turbo, which was released as part of Cartoon Network's 2013 Summer Shorts project . It is produced by Cartoon Network Studios . The web series premiered on Cartoon Network's YouTube channel and on Cartoon Network Video on February 4, 2016 . </P> <P> On March 9, 2017, nearly four years after the original short's premiere, Cartoon Network announced that the television series had been greenlit . The opening sequence was storyboarded by Japanese artist Hiroyuki Imaishi, co-founder of Studio Trigger . </P> <P> On December 4, 2017, the series was confirmed to be renewed for a second season, which premiered on May 5, 2018 . </P> <P> OK K.O.! Let's Be Heroes is set in the retro - futuristic year of 201X . The series follows the titular character, K.O., and his efforts to become the world's greatest hero while working at Gar's Bodega (run by Mr. Gar), a hero supply shop in Lakewood Plaza . Alongside him are his best friends and co-workers Radicles, a narcissistic alien, and Enid, a levelheaded big sister - like ninja, as well as other heroes who work in the area . </P>

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