Foreign powers keep getting their hands on U.S. military secrets, so the head of the American diplomatic corps calls in his nephew Dick Stansbury to help. Stansbury knows that Doctor Montell is at the bottom of this, so he poses as an inventor of an innovative aerial gun. This sparks the doctor's interest, and when they both attend a weekend party at the Ryerson estate, Montell tries to get Stansbury to sell the gun to his country.
Francis X. Bushman
Dick Stansbury
Beverly Bayne
Beverly Ryerson
Helen Dunbar
Mrs. Ryerson
Henri Bergman
Dr. Montell
Belle Bruce
Helen Wardlow
Edmund Elton
Major Blaine
Mrs. La Roche
Mrs. Blaine
William B. Davidson
Lynn Hardi
Charles Fang
Chinese Valet
Harry Blakemore
Butler
Liza Miller
Mammy
