During the darkest days of the Civil War, wicked cutthroats came into possession of six pistols of otherworldly power. The Sixth Gun – the most dangerous of the weapons – has vanished. When the gun surfaces in the hands of an innocent girl, dark forces reawaken. Villains thought long dead set their sights on retrieving the gun and killing anyone in their path. Only Drake Sinclair, a gunslinger with a shadowy past, stands in their way.