Drummond goes up against foreign agents who are trying to steal plans for a top-secret aircraft.
as Hugh "Bulldog" Drummond
as Doris Thompson
as Gregoroff
as Algy Longworth
as Caldwell
as Ivan Kalinsky
as Major Grayson
as Meredith
as Veight
as Norah
as Mrs. Caldwell
as Dr. Belfrus
as Reginald Portside
as Reporter
as Conrad
