Crossover Nexus OK K.O.! Let's Be Heroes : Season 2 Episode 18
TV-Y7-FV Cartoon Network 11m
Aired: September 21st, 2018 @ 6:30 PM EST on Cartoon Network
When KO finds himself trapped inside an mysterious place, he encounters other Cartoon Network Heroes (Garnet from Steven Universe, Raven from Teen Titans Go!, and Ben Tennyson from Ben 10) and they band together to escape.
