Zoe Hull, 17, uses her wits, survival skills, and compassion to fight for her life, and the lives of her classmates, against a group of live-streaming school shooters.Zoe Hull, 17, uses her wits, survival skills, and compassion to fight for her life, and the lives of her classmates, against a group of live-streaming school shooters.Zoe Hull, 17, uses her wits, survival skills, and compassion to fight for her life, and the lives of her classmates, against a group of live-streaming school shooters.