Sierra Sue (1941)
Action / Adventure / Western
Director: William Morgan
Cast: Gene Autry, Smiley Burnette, Fay McKenzie, Frank M. Thomas, Robert Homans and Earle Hodgins
Taking on the role as government inspector, Gene finds himself searching for clues into the many cattle deaths. The ranchers are determined to get rid of a malignant weed by burning down the spot. Gene disagrees and prefers using a chemical spray straight off an airplane.