A crusading newspaper editor recruits his old friend Hoppy to take the job of Marshall in a town rife with vice and murder directed at helpless miners.

William Boyd
as Hopalong Cassidy

George 'Gabby' Hayes
as Windy Halliday

Gail Sheridan
as Mary Saunders

Evelyn Brent
as Lilli Marsh

Morris Ankrum
as Blackie Felton

William Janney
as Buddy Cassidy

Irving Bacon
as Peg Leg Holden

Grant Richards
as Bob Claiborne

John Beck
as Bob Saunders

Ernie Adams
as Assayer Benson