Britain's Secret Treaty

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

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

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

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

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

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.

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

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

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

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

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

A private detective and his young assistant solve crimes.

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

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.

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

A Sexton Blake mystery.

A Sexton Blake mystery.

In this lively detective drama, Sexton Blake, private eye, must find out who stole the bonds of a prominent financier.