In the old Indian territory, there were many men who lived their lives as fugitives from the law. Some of them became quite famous and their names were spoken in a whisper - even by strong men. One of these was a desperado called Willie the Wisp, a man who struck at night, always wearing a mask. Somehow the law could never seem to catch up with Willie. Whenever he robbed it was a rich rancher or a stage coach loaded with gold, or a mail train carrying valuable securities...