In this early Italian western, Gary O'Hara (Montgomery Wood, aka Giuliano Gemma) is a former captain of the Confederate Army. He is beset by trials and tribulations of all kinds, including the killing of his beloved brother. Frustrated by the injustice of it all, he begins a personal campaign to bring some justice to the plentiful miscreants of the West. Before he died, Gary's brother gave him a silver dollar; among its many roles, it saves Gary's life and also helps him solve a crucial mystery.