Bull, Roy Jonathan Davis, Jr., Is Orphaned During A Comanche Raid On His Father'S Ranch In 1873 Colorado. Raised By Old Ned, A Mountain Man Turned Prospector, Bull Remembers His Father'S Advice To Gain Security By Gaining Wealth And Power. He Works As A Cavalry Scout, Then Uses Gambling And Stock Speculations To Gain Control Of The Placer City Mine. He Builds The Rigel Corporation, A Mining And Agriculture Empire, Despite The Antagonism Of Walks-Like-Snake, A Ute Chief, And His Own Reluctance To Change With The Times.