Adeline idolizes Gianna, the queen bee of the "in crowd" at her middle school. Desperate for a shot at being popular, Adeline ditches her long-time friends, Emily and Marco. But she soon discovers that fitting in with the cool girls involves going along with Gianna’s suprising mean streak. Gianna's idea for a Halloween prank may even have dangerous consequences. Can Marco and Emily’s true friendship help Adeline find the courage to stand up to Gianna before it’s too late?