U.S. Marshal Hopalong Cassidy is called when a town becomes overrun with bad guys. Disguised as a member of a medicine show, Hoppy discovers that the ringleader is none other than sweet li'l ol' Ma Burton.
------
Cast:
William Boyd - Hopalong Cassidy
Russell Hayden - Lucky Jenkins
Marjorie Rambeau - Ma Burton
Bernadene Hayes - Paula Tate