Sheriff Joe Haladin is back, and this time, a vicious ex-con returns to Arlettsville and commits a crime so vile, it consumes the whole town and the whole country. Evil knows no bounds, but neither does Sheriff Joe.

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