Texas 1885. Chance Murdoch is a respected lawman with a sterling reputation. After an encounter with an escaped prisoner almost turns deadly, Chance is rescued by a group of Apaches who turn him into one of their kind, a 'moon wolf.' Luke Murdoch is an outlaw with a price on his head that continues to grow with his reputation. A late night tryst with a saloon girl transforms Luke from petty criminal into a vicious 'blood drinker.' The long feuding...