Storyline:The sixteen-year-old contract killer No. 83 (Hailee Steinfeld) is able to assemble and use blind weapons, she can ride as well as a racer and strike like Jackie Chan. Actually, she desires nothing more than to have a normal youth - to visit a real school, to make friends and to go to a party. During a mission, she decides to fake her own death and then enroll in a school. As an exchange student Megan Walsh, however, she soon realizes that school life is not as fun and easy as she had imagined. Their situation is further complicated when the ruthless terrorist Victoria Knox (Jessica Alba) gets on her feet.