Giuliano Raffaelli

Near the end of the American Civil War, an entire unit of one hundred Union sharpshooters vanish into thin air in a rugged, mountainous region. To shed light on their mysterious disappearance, Sugar Colt, a former special agent, superb marksman, and director of a shooting academy, rides into the dusty town of Snake Valley, posing as Doctor Tom Cooper.

Former Confederate officer Gary Hamilton seeks his revenge on the family responsible for his wrongful sentence to ten years of hard-labor.