Fifteen year old Makenna McCall, Scott McCall's sister, has been with him since he got his first inhaler to the night he got bit. She has been through all the ups and downs of the supernatural world, but she wasn't at all prepared for what would be thrown at her next. Her entire world is turned upside down when Scott bites Liam, an I.E.D. (intermittent explosive disorder), and she just happens to be his anchor.