Billy Gregg, a middle-aged resident of late 19th-century rural Arizona, had tried to defy Josh Potland, a local strongman, which led to his being cruelly tortured and left crippled.
One day he encounters a strange young woman, dressed in curious silver clothing and heavily pregnant, who is hassled by two of Potland's cowboys.
This draws to him once again the highly unwelcome attention of Potland and his gang, who seek revenge and also feel that Gregg is "too old for such choice woman-flesh".
And even the threat they pose is dwarfed by that of the sinister "Hunter", a faceless figure shrouded in a dark aura, who relentlessly hunts Morna.
With such a weapon in his hand, Gregg just might have a chance to win an epic gunfight which would eclipse even the recent one at OK Corral.