Oklahoma City is caught in the deadly cross fire between white-supremacist vigilantes known as the Sons of Oklahoma and black and Hispanic street gangs. Detective Grace Hanadarko feels the pressure, especially when her best friend is targeted for protecting the runaway wife of the Sons' abusive leader. As if arson, vandalism, and bloodshed aren't enough for Grace to go full throttle, the very sick young friend of her nephew is kidnapped, and his abductors threaten to withhold medical treatment. But Grace has heart--and she won't put down her gun until there's nothing left.