Cassie goes to a prestigious academic school where girls have only just been admitted after decades of it being single-sex. When a female student from the school anonymously posts about the sexual abuse she has suffered and the school does not act properly, Cassie knows that she needs to take matters into her own hands. She and her friends prepare for battle - with a strike, an assembly, as well as outside school spending their weekends protesting to save the woodland from development. But will her activism only make things worse, or will she succeed in righting the wrongs that so many choose to ignore? And could there be a more personal reason for her behaviour?