
Hoppy's friend Dennis owns a rich gold mine. Frazier who owns the adjoining mine and wants the Dennis mine, has Dennis killed. Hoppy steps in to take over running the Dennis mine and learns Frazier's men sneak into and work the Dennis mine at night. Hoppy captures one of Frazier's men only to be captured in return by Frazier and left to die in a burning building.

as Hopalong Cassidy

as Windy Halliday

as Lucky Jenkins

as Ann Dennis

as Buck Peters

as Frazier

as Slade

as Denny Dennis

as Perkins

as Pierce

as Ross

as Miner

as Les Martin

as Evans

as Townsman

as Murphy

as Frosty

as Miner

as Miner

as Fred

as Jim