Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

Texas Rangers Tex Wyatt, Jim Steele and Panhandle Perkins are sent to the district of Rawhide to investigate the killings of several ranchers. Tex enters the town posing as a…

Tom Weston arriving in town just as the Doctor announces his father’s death a suicide, sees the gun is in the wrong hand. When the Bank Examiner announces the bank…

The arrival of the telegraph put Pony Express riders like John Blair and his pal Smoky out of work. A race will decide whether they or stageline owner Drake get…