Nugget Clark has been having his stagecoaches wrecked and Marshal Rocky Lane arrives to investigate. The foreman of a nearby mine is stealing part of the mecury output and selling it in Mexico. Nugget's house has a direct pipeline from the mine and they are trying to drive him into bankruptcy to obtain his ranch. Rocky is quickly aware that the Foremen is behind Nugget's holdups but they are also onto Rocky when he accidently drops his badge during a fight.
Allan Lane
as Rocky Lane (as Allan "Rocky" Lane)
Black Jack
as Black Jack
Eddy Waller
as Nugget Clark
Roy Barcroft
as Jim Boylan
Myron Healey
as Lieutenant Dan Booker
Lyle Talbot
as Walter Fleming
Claudia Barrett
as Kathy
Lane Bradford
as Henchman Mike
Lee Roberts
as Henchman Spec Matson
Ed Cassidy
as Deputy Marshal (as Edward Cassidy)
Charles Evans
as Major Seeley
Zon Murray
as Henchman
