When a brawl at a rap festival triggers a bloody mass shooting in Mississippi, Penn Cage finds himself in a country on the brink of eruption. As the stunned cities of Natchez and Bienville reel, antebellum plantation homes are being torched and the deadly attacks are claimed by a Black radical group as historic acts of justice. Panic quickly sweeps through the communities, driving the prosperous Southern towns inexorably toward a race war.