In the aftermath of the American Civil War, Jonah Hex, a disfigured bounty hunter with a shadowy past, finds himself in the middle of a personal vendetta against Quentin Turnbull, a vengeful and powerful enemy who was responsible for the death of Hex's family. Hex is unique not just because of his appearance or his ruthless efficiency in tracking down those he hunts, but because he possesses the supernatural ability to communicate with the dead. This skill allows him to extract crucial information from the deceased, giving him an edge in his quest for vengeance and justice. Driven by the pain of his past and his relentless desire for retribution, Hex navigates the violent and chaotic world of post-war America, where lawlessness reigns and corruption festers in every corner.

Tasked with stopping Turnbull, who is plotting an unimaginable act of terror that could shift the balance of power in the nation and destroy the very fabric of society, Hex allies with Lilah, a tough and enigmatic woman who has her own reasons for battling Turnbull's tyranny. As Hex confronts Turnbull's forces and unravels his sinister plans, the bounty hunter must also battle his inner demons and the moral complexities of his bloody campaign. The stakes become personal and national, as Hex's journey brings him face to face with the true costs of revenge and the possibility of redemption amidst relentless chaos and destruction.