Diamond thieves have infiltrated the staff of O'Day Jewelry. The Los Angeles Police Dept. employs their newest weapon, an airplane, to help smash the diamond theft ring.
Neil Hamilton
Jack MacDowell
Dorothy Gulliver
Gwen O'Day
Ralph Lewis
Dan MacDowell
Nigel Barrie
Robert Chandler
Claire McDowell
Mrs. MacDowell
Fred Esmelton
Howard aka Matthew O'Day
Harry Northrup
A.E. Blair
Thelma Todd
Rose aka Flora Fisher
