Hoppy and his pals arrive in a remote town to investigate the counterfeiting of both U.S. and Mexican money; his only clues are the name "Mordigan" and a drawing of a comet. He quickly finds out that Mordigan is the town "boss"; but what or who is "the comet", and why are Mordigan and his henchmen intent on persecuting a young woman, her drunken brother, and her deathly ill sister-in-law who've also just arrived in town?
as Hopalong Cassidy
as California Carlson
as Lucky Jenkins
as Nora Murray
as Mordigan
as Henchman Pete Walters
as Ramon De Lara, faro dealer
as Dr. White
as Henchman Longhorn
as Wong
as John Murray
as Sid Murray
as Mary Murray
as Joe, the bartender
