You are going to Watch Detentionaire Episode 21 online free episodes with HQ / high quality. Stream cartoons Detentionaire Episode 21 Online School Hard. With the Inspector coming, Barrage has everyone work extra hard to spiff up the school. But things get weirder than usual when the Hazmats take their orders to ‘sanitize’ a little too seriously. Brad, who thinks it’s all being filmed for a movie, leads the school witnesses the library, following Lee’s idea. Tina, Cam, Lee and Biffy find out that the Hazmats are robots. They eventually stop the Hazmats and Vice Principal Victoria forces Barrage to deactivate, fix and make the Hazmats ‘desanitze’ the early victims. Lee feels jealous of Brad kissing Tina and tells Biffy to try harder at cracking Radcircle’s phone.