Dick Rutherford, known as The Colonel, loses all his money and heads into the Far West to seek his fortune. His companion on this is, Christy Deever, whose inventiveness and quick thinking prove valuable assets on the frontier. After a series of exciting adventures, they find themselves adopted members of the Mandan Indians. It is then that The Colonel and Christy encounter Stone-That-Shines, a Mandan warrior who is in possession of an eponymous medicine stone. Upon a closer look, the Colonel discovers that this "stone that shines" contains a rich vein of quartz gold. Its source could be the answer to his quest. However, things then get complicated...