Hammer the Toff (DVD)

Bentley is the Toff, a Saint style detective who falls upon a sinister plot while on a train. It seems that a criminal known as the Hammer is looking to steal a secret formula for a new lightweight metal alloy that's tougher than steel. Dainton's uncle is the inventor and is murdered by the gang. The Toff then spends the rest of the film trying to track down the criminals.