A mysterious master criminal known as The Voice plots with his gang to sabotage the Milesburg Oil Company, but the rightful heir has a secret army of her own to protect her rights.
Harry Carey
as 'Happy' Cardigan
Edwina Booth
as Caroline Hall
William Desmond
as Milesburg Sheriff
Frankie Darro
as Jimmie Williams
Philo McCullough
as Stevens
Yakima Canutt
as Yak
Joe Bonomo
as Stuffy
Tom Dugan
as Oil Co. Director Warren
Lafe McKee
as T.J. Hornbeck
Bob Kortman
as Marno
Edward Hearn
as Jed Williams
Paul Weigel
as Oil Co. Director Larribee
