Eighteen-year-old Caleb Whitlock, the heir to his father's Ku Klux Klan chapter in 1950s Texas, is forced to commit a brutal act of violence that shatters his conscience. His burgeoning guilt is compounded by his forbidden love for Lily Jefferson, an intelligent and courageous Black girl. To save Lily and her family from his father's escalating wrath, Caleb must betray his blood, his best friend, and the only world he has ever known, sparking a violent cross-country war that will force him to confront the monster he was raised to be.