Britain's Secret Treaty

Sexton Blake tracks down a gang who have stolen secrets from a rocket site.

A detective saves his boy assistant from a bank swindler after escaping a fire by overhead cable.

A girl frames a drunkard for a gem theft. The detective is saved from the crook's launch by a boy's 60-foot dive.

A detective saves the kidnapped daughter of an inventor murdered for his formula.

A Sexton Blake mystery.

A private detective and his young assistant solve crimes.

Third release in the 'Sexton Blake' series of short crime dramas.

Fourth release in the 'Sexton Blake' series of short crime dramas.

Fifth release in the 'Sexton Blake' series of short crime dramas.

Sixth release in the 'Sexton Blake' series of short crime dramas.

A detective saves a clerk from a gang who tie him to a clock-operated gun.

A crook poses as a Lord to rob a merchant and holds a detective captive in his cellar.

Sexton Blake and Tinker foil criminal plot connected with the Tongs, and master-minded by "famous stamp collector" and millionaire.

An entomologist runs a spy ring of bus drivers from a tower in Epping Forest.

A detective is drugged with flowers and tied to a sawmill while saving an ex-gambler from a jewel theft charge.

A detective poses as a cleric to save a squire's daughter from marrying a murderer.

'Sexton Blake' poses as a gang's messenger to save a kidnapped girl.

Jewel thieves steal a Lady's car and are trailed by a detective.

A Sexton Blake mystery.

The famous detective and his trusty side-kick, Tinker, are called in by the War Office to find some important papers that were stolen from a man killed during an air raid.