After years of traveling, Anyas parents have decided to return from Australia to their native France, and she has to attend a public school for the first time in her life. But normal everyday school life quickly causes problems for the girl. On the first day, she gets a shot with a soccer ball on the head. When no one wants to apologize for this, a violent argument immediately ensues. So she messed it up with the locals right from the start. Anya becomes an outsider, which doesn't even really bother her. But Zoé, Nils and Jade, who are also a bit different, take care of her. A new clique is formed. But the pretty outsider would prefer to be friends with Nathan, the school director's son. But he gives her the cold shoulder because it wouldn't be cool to be interested in girls in front of his buddies. Meanwhile, the girls hatch a plan to win their place in the schoolyard. A real fight ensues between the students. Now it's girls against boys. But how far can a dispute between children go?

Anya, élève de CM2 dans un établissement public de la périphérie de Nancy, est victime de harcèlement scolaire parce que “différente”, mais refuse de se laisser faire et se rebelle contre la violence qui régit les relations entre élèves, notamment lors des récréations.

Anya ist neu in der Klasse, und von Anfang an machen ihr die Fußball-Jungs das Leben schwer. Anya schmiedet Pläne, wie sie sich ihren eigenen Platz auf dem Schulhof erkämpfen können. Es entsteht ein Machtkampf: Mädchen gegen Jungs. Die Klasse ist außer Kontrolle, die Lehrerschaft maßlos überfordert. Auf einer Klassenfahrt droht der Kampf der Geschlechter dann völlig zu eskalieren.