

30/01/1937
Sir James Blake has retired from Scotland Yard so that he can assist his niece Hope and her friend Jerry in developing an apparatus they have invented. Sir James thinks that their invention has the potential to prevent wars, and plans to donate it to the League of Nations. But a gang of criminals led by the elusive "Scorpion" steals the device, and Blake and his associates must recover the invention and determine the identity of the "Scorpion".

Ralph Byrd
as Jerry Sheehan

Joan Barclay
as Hope Mason

Lloyd Hughes
as Doctor Marshall

Dickie Jones
as Bobby Mason

Lucille Lund
as Duchess

Nick Stuart
as Julot

Sam Flint
as Chief Insp. Henderson

Gail Newbury
as Mimi - Policewoman

Jimmy Aubrey
as The Hag / Baron Polinka

Theodore Lorch
as Daggett - the Butler (as Ted Lorch)

George DeNormand
as Pedro - Henchman

Bob Terry
as Peyton - Henchman

William Farrel
as Count Basil Segaloff

Frank Wayne
as Charles - the Footman

Dick Curtis
as Nicky
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