Tom Cameron (George Houston) is searching for the outlaws who ambushed a wagon train, murdered his parents and stole the deed to their land. Though he was only a child at the time, he still vividly remembers the scar on the ringleader's face.
Years later, Tom, who is known as "The Lone Rider," discovers a startlingly similar case of an ambush killing where stolen land is the motive. Together with his pal Fuzzy (Al St. John), he tracks down the gang and discovers the man with the scar, who is working in the most unlikely place.