Sukru runs a trading company to front a drug smuggling operation, using carrier pigeons to carry the drugs.
Guest Stars:
Peter Illing, Patrick Troughton, Guy Deghy, Larry Burns, Edwin Richfield
Some conmen convince financial journalist Brownley that leading financier Untermeyer is dead. His report throws the stock market into confusion, allowing the conmen to clear up on the markets. Brownley is then murdered.
Guest Stars:
Phil Brown, Walter Rilla, Ferdy Mayne, Delphi Lawrence, Walter Gotell
An unexploded bomb from World War II is found by a dam, and only the makers will know how to defuse it.
Guest Stars:
John Crawford, David Cameron, Esmond Knight, Oliver Burt, Jack Stewart
An ex-con deported to Italy after serving a prison sentence in the U.S.A., has invited a group of protection racketeers to join him in Naples.
Guest Stars:
Marla Landi, Alan Tilvern, Robert Cawdron, George Pastell, Edwin Richfield
The body of a merchant seaman, reported lost overboard in the Mediterranean, is washed up on the south coast of England with a bullet in his head.
Guest Stars:
David Kossoff, John Le Mesurier, Balbina, André Maranne, Francis de Wolff
Duval investigates the death of an illegal immigrant killed after he disembarked from a freighter at New York.
Guest Stars:
Cec Linder, Gerard Heinz, Arnold Diamond, Colette Wilde, Leonard Sachs
Duval investigates the death of an illegal immigrant killed after he disembarked from a freighter at New York.
Guest Stars:
Mai Zetterling, Roland Bartrop, Robert Rietti, Peter Vaughan, Hugh Morton
Duval investigates the theft of a valuable old master from the collection of Sir Isaac Spendler.
Guest Stars:
Michael Goodliffe, Moira Redmond, Ernest Clark, Leslie French, Frederick Leister
Duval investigates the apparently motiveless murder of a N.A.T.O. courier found in a sleeping compartment on the Black Sea Express
Guest Stars:
Edwin Richfield, Jane Hylton, Roland Bartrop, Lee Montague, Gamel Faris
Duval investigates the disappearance of a valuable antibiotic somewhere between New York and the World Health Organization in Sweden.
Guest Stars:
John Van Eyssen, Trevor Reid, Lloyd Lamble, Dorinda Stevens, Edwin Richfield
Duval investigates the theft of four uncut matched stones from an Angolan diamond mine.
Guest Stars:
Edwin Richfield, Rupert Davies, Alfred Burke, Philip Ray, Arthur Gomez
Duval investigates the theft of a cargo of valuable platinum from a flight from Rangoon to Hong Kong after the airplane is forced down by a passenger.
Guest Stars:
Bill Nagy, Jan Holden, Howard Marion-Crawford, Brown Derby, Zed Zakari
Duval looks into the slave trading racket, investigating the mysterious disappearance of many thousands of natives from Mombasa during the annual pilgrimages to Mecca.
Guest Stars:
David Davies, Meredith Edwards, Harold Kasket, Cyril Shaps, Oscar Quitak
Duval is on the trail of forger Eddie Keflik, who has blackmailed a clown in a traveling circus into working for him.
Guest Stars:
Lisa Daniely, Warren Mitchell, John Crawford, Waveney Lee, George Pastell
Duval investigates the death of a gang member in Paris and uncovers a murder list.
Guest Stars:
Annabel Maule, Sandra Dorne, Michael Brennan, Ewan MacDuff, Donald Stewart
Author Andrew Slater, writing a book about the war, discovers that Onno van Veer, remembered as a hero of the Dutch resistance, was not executed by the S.S. after all. Duval unearths a tale of treachery and murder.
Guest Stars:
Victor Beaumont, Leigh Madison, Kevin Stoney, Bruno Barnabe, Edward Jewesbury
A man extorts a large sum of money from an insurance company. Interpol begin a tireless operation to track the man through countries that don't have Interpol agreements.
Guest Stars:
Guy Rolfe, Susan Travers, Richard Leech, Martin Benson, Edwin Richfield
Duval investigates a murder. The victim's husband appears to have the perfect alibi: he was leading the Italian Mille Migla motor race at the time of her death.
Guest Stars:
George Pastell, William Lucas, Roland Bartrop, Margaret Diamond, Brian Worth
Duval investigates the theft of a million dollars worth of platinum by three men posing as a U.S. Navy Patrol, who killed the passengers and crew of the S.S. Jensen.
Guest Stars:
Richard Gale, Reed De Rouen, Steve Plytas, Alec Mango, Lloyd Reckord
In Montreal for Interpol's annual conference, Duval catches up with a wanted man who escaped his clutches back in 1939.
Guest Stars:
Peter Dyneley, Alan Gifford, Paula Byrne, Russell Waters, Charles Richardson
Gangster Mike Marko amassed a fortune from the rackets, but did not live to spend it. Duval is on the trail of his right-hand man, Pavone.
Guest Stars:
Leonard Sachs, Paul Stassino, Christina Gregg, Richard Leech, Edwin Richfield
Ronald Millais is a gigolo, living off women who fall for his easy charm. Duval investigates claims that Millais has kidnapped a millionaire's daughter.
Guest Stars:
Julia Lockwood, Maurice Kaufmann, Betty McDowall, Donald Morley, Christopher Rhodes
Schroeder was erroneously convicted of the murder of his business partner, Kaltmann. Duval orders that the ex-convict be watched when he hints at committing the crime for which he has already been punished.
Guest Stars:
Raymond Huntley, Carl Duering, Walter Gotell, Wendy Williams, Edwin Richfield
Duval goes to Madrid on the trail of a young couple who have robbed a Tel Aviv bank, using the female's threat to commit suicide as a diversionary tactic.
Guest Stars:
Edwin Richfield, Gaylord Cavallaro, Barbara Shelley, Arnold Bell, David Lander
Diamond dealer Jacob Moltz and his accomplice, girl magician Frankie Silver, devise a foolproof plan to rob the biggest diamond house in Amsterdam, and frame safe-cracker Sash Moran.
Guest Stars:
Bill Nagy, John Salew, June Merlin, Edwin Richfield
The value of paintings by Hugo Ballard begins to soar after his death, so why would his widow slash one of his paintings?
Guest Stars:
George Pastell, Mary Laura Wood, Elizabeth Wilson, Ronald Leigh-Hunt, Stanley Van Beers
A policeman is shot in the back in the opal mining settlement of Cranby's Creek, in the Australian outback, and the townsfolk claim the shooting was carried out by Emil Brock, who is wanted for murder by Interpol.
Guest Stars:
Tommy Duggan, Roland Bartrop, Leslie Weston, Felicity Young, Charles Houston
Insp. Duval is in pursuit of American financier Pearce Clyde, who is wanted for questioning by the U.S. Treasury. When he arrives at Clyde's hotel in the Himalayas, Duval sets off a booby-trap.
Guest Stars:
Ursula Howells, Anthony Dawson, Howard Marion-Crawford, Gordon Tanner, Julian Sherrier
Duval is held up in a small canal town when a strange death occurs. The local authorities think the death is a straight forward suicide, but Duval sees evidence of something more sinister.
Guest Stars:
William Franklyn, Francis de Wolff, Bernard Cribbins, Stanley Van Beers, Harold Kasket
Duval responds to a tip-off from an American reporter about a possible organized blackmail racket in a Swiss ski resort and goes to Switzerland posing as his Paris banker friend, Count de Regny. When he arrives in Switzerland he realizes that he has been set up as the next victim.
Guest Stars:
Mary Morris, Nanette Newman, Douglas Wilmer, Francis Matthews, Robert Gallico
Interpol is called in when the police find the body of a French girl in the boot of an American car. Everything points to Ben Stack as the murderer, but Duval is not convinced.
Guest Stars:
Edwin Richfield, John Crawford, Michael Balfour, Stratford Johns, Carl Duering
Lars Lukas, a French swimmer, is shot after completing a cross-Channel swim from France. It appears to be a motiveless murder until Duval hears a tape recording of Lukas's last words, a lead to a smuggling ring.
Guest Stars:
John Horsley, Dorinda Stevens, Trevor Reid, Jack Lambert, Robert Mackenzie
Duval is on the trail of Thackeray, an international forger who robs safes and substitutes forged bills for the real thing.
Guest Stars:
Edwin Richfield, Lionel Murton, Cyril Shaps, Anthony Jacobs, Arnold Diamond
The driver and hostess of a coach tours company have a profitable sideline carrying out armed robberies in the towns that they visit. Duval investigates the shooting of a Paris jeweler.
Guest Stars:
Edwin Richfield, Glyn Owen, Rona Anderson
Duval agrees to help his old friend, Bernarde, the owner of a Paris salon, to keep his latest creations under wraps until the big fashion show, but Harry Grayson and Mamie Bryant have other ideas.
Guest Stars:
David Knight, Hazel Court, Frederick Jaeger, Caroline Leigh, Paula Byrne
Duval flies to Delhi to locate a consignment of live cholera vaccine stolen from a laboratory in Karachi.
Guest Stars:
Edwin Richfield, Marne Maitland, Laurence Payne, Surya Kumari, John Gatrell
Duval is asked to investigate a gun-running racket in North Africa, and suspects archaeologist Professor Velard of involvement.
Guest Stars:
Edwin Richfield, Patrick Jordan, Colette Wilde, Henry Oscar, Neal Arden
Duval goes to South America to pick up Dave Carson, who is wanted for murder. He walks into the middle of a revolution, and has to work side-by-side with his quarry.
Guest Stars:
John Bentley, Richard Leech, Elisabeth Wilson, Dervis Ward
Duval is called in after an assassination of an American diplomat. Evidence seems to point to a recently released Nazi seeking revenge. What does puzzle Duval is how he constructs the assassinations.
Guest Stars:
Edwin Richfield, Donald Pleasence, Frederick Piper, Russell Waters, John Longden