Also with Vida Hope, Harold Lang and Peter Swanwick. Stryker chases a gang of bank robbers- and the final showdown comes in a lonely warehouse.... To pay for his wife's medical treatment, Joe turns to crime. The Case of The Black Falcon Interpol requests the help of Scotland Yard in tracing diamond smuggler Gustave Clement, who has eluded police after a chase.
Inspector Susan Bond starts work as a shoplifter in order to help Stryker catch Diamond Annie who runs a junk shop, where stolen goods are bought and sold 12 The Case of the Pearl Payroll- with Mary Merrall, Joan Newell and Russell Waters. A hulking man (Guy Deghy) approaches the owner of The Black Falcon boat, Philip Marsden (Tim Turner), who is short of money.
3 The Case of Canary Jones- A nightclub singer is found dead in her apartment.That night Marsden makes for France leaving behind his worried wife Sheila and small son, who live near the River Thames.At the rendezvous, a rowing boat brings Clement and his purse of diamonds to The Black Falcon.Sentenced to prison for ten years, he escapes from a working party on the moors, determined to bring the killer to justice 8 The Case of The Black Falcon- with Tim Turner, Dorothy Alison, David Perrin, Guy Deghy, Elliot Makeham and Philo Hauser. 9 The Case of the Bogus Count- with Elwyn Brooke-Jones, and Anthony Newley as singer Gerry Barnes, who gets a job at a crooked night club. 10 The Case of The Express Delivery- with Sandra Dorne, a bad time girl who leads astray a once reliable mechanic Wally Ross.11 The Case of Diamond Annie- with Hugh Moxey, and Marjorie Rhodes in the title role.
Having safely returned up the Thames, however, the crook does not hand the diamonds over to his boss, Sandford (Eliot Makeham). Inspector Stryker is pursuing his inquiries over the diamonds.