John Parker had it all. A decorated sharpshooter in the Civil War, he had a promising career ahead of him, a beautiful wife, and a newborn son. But after becoming embroiled in a dark and demonic conspiracy engineered by the Bakerton Detective Agency, he lost everything.

Fleeing to the West, a broken man, Parker reinvents himself as "No Man," a heartless gun-for-hire whose only solace comes from hunting and killing the demons who he helped set loose. With Buntline Special in hand, a deadly revolver with a sixteen inch barrel, he blasts his way through a different kind of Old West, where strange and evil beings lurk.