16-year-old Olivia lives a secluded life together with her doting father, but that all ends when his past catches up with him and he gets killed. Olivia is determined to avenge her father. Danny, an old friend of her father, offers her a way to get her revenge. She can join the organisation. However, this is only allowed if she disguises herself as a guy. But when she meets James, Danny's very attractive son, everything gets just a bit more complicated.