When two of their Marshal friends are killed, the Rough Riders are sent to investigate. They have to find the killers in a ghost town where the houses and an old mine are interconnected by secret passages and tunnels.
Tim McCoy
as Marshal Tim McCall
Buck Jones
as Marshal Buck Roberts
Raymond Hatton
as Marshal Sandy Hopkins
Virginia Carpenter
as Josie Hall
Howard Masters
as Tom Cook
Murdock MacQuarrie
as Judge Crail (as Murdock McQuarrie)
Charles King
as Henchman Gus
Tom London
as Ace, Chief Thug
Ben Corbett
as Red Larkin
Milburn Morante
as Luke Martin
Jack Baxley
as Chief Marshal Pat Madderson
Eddie Phillips
as The Caretaker, called "The Kid"
