The local "mafia" gang Nostra, headed by the dude Yvoš (Tomáš Weber), operates at the high school called Za školou. When Yvoš forces Tony (Prokop Zach), a weirdo and renowned thief, to steal a box with secret contents from the math professor's office, it turns out he has a plan that's about to culminate at the school's academy. Tony discovers that he has stolen the cell phone of his platonic love Valérie, Yvosh's ex-girlfriend. He seeks revenge on her by publicly projecting her exposed photos at the academy during a performance. So Tony puts together a group of "losers" and together they plan how to thwart Yvosh's revenge. And Valérie joins them. Tony and Valérie begin to bond, but the two gangs have a lot of planning, stalking and thrilling chases ahead of them. As the academy draws closer, it gradually becomes clear that not everything is as it seemed... Note that this film will only be screened in Czech without English subtitles.