
Two American-army officers are working on a new type of machine-gun for anti-aircraft warfare, when one of them is murdered. The other vows to get the spies that are after the invention and avenge his friend's death.

as Capt. Todd Hayden

as Elaine Burdette

as Jean Bruce (as Jane Carleton)

as Col. Burdette

as Frank Denton

as Capt. Don Mayhew

as Private Timothy O'Reilly

as General A. R. Bowen

as Charley (Spy-Ring Chauffeur)

as Capt. Tex Randolph

as Paul Douglas

as Capt. Holden

as Capt. Robert Scott

as Firing Range Radio Operator (uncredited)

as Reporter (uncredited)

as Sergeant Who Threatens Mayhew (uncredited)

as Reporter (uncredited)

as Cavalry Officer Playing Polo (uncredited)

as Reporter (uncredited)

as Spy Ring Member (uncredited)

as Girl at Officer's Club Dinner (uncredited)

as Firing Range Officer (uncredited)

as The 'Champ' (uncredited)

as G-2 Sergeant (uncredited)

as Polo Game Timekeeper (uncredited)