Following the death of his fiancee Peggy at the hands of heroin smugglers, Dr David Keel vows to track down the kille...

Steed has infiltrated a gang, led by Mason, which is implicated in Peggy's murder. Steed asks Keel to establish cont...

Steed impersonates Riordan, a forger soon to be released from prison, and gains the trust of gang-leader Hooper. Thi...

Keel receives a 'phone call from one of his patients, and ends up assuming the identity of her missing husband, a sci...

A young girl, Carmelite Mendoza, has been kidnapped from a Caribbean island, but Steed suspects a political motive. ...

Keel, reviving a young woman who has jumped into the Thames, is led to the Radeck State Circus, where the trapeze gir...

Steed, attempting to break a gang of international diamond smugglers, is living in a bungalow near Heathrow Airport w...

Dr Keel is asked to help in the search for a man who has picked up a radioactive isotope, not knowing that it will qu...

Steed, investigating a number of probable arson cases, is led to the hairdressing salon of Olive and Jacques Beronne....

Frank Preston is released from prison and is intent on reclaiming the hidden proceeds of his robbery. So is Steed, w...

Steed trails a blackmailed civil servant to Brinkley House, a private zoo, only to observe the man throwing a package...

Dr. Keel resuscitates Elaine Bateman, the owner of a ballroom dancing school who has narrowly survived a murder attem...

When Keel attends a health conference in Geneva he is unaware that he is carrying, in microdot form, a vital new medi...

Steed is trying to track down the organisers of a group who offer to spring any convict - even the dangerous ones - f...

To stop his daughter seeing suspected conman Jeremy de Willoughby, Sir Thomas Waller has hired arch-criminal the Deac...

After an unsuccessful murder attempt against Sir Wilberforce Lungi, Steed asks Keel, an old friend of the pro-Western...

An agent has been killed at the secret dockyard where submarines are built. Steed investigates, and finds that a for...

Keel, called to deal with a man seriously injured by an accident, quickly discovers that the man is suffering from g...

Keel is asked by the improbably named Bunty to help her find her missing friend. What is the connection between the ...

Top-secret information is finding its way into the wrong hands, and the source seems to be a south coast fairground. ...

Dr Keel, treating the victims of a cyclone struck Mexican village, uncovers a number of food-poisonings; emergency c...

A visit to London to sign an oil treaty from a monarch whose life is under threat brings Steed and Keel into the worl...

The discovery of the body of Schneider, a wanted Nazi war criminal, deep-frozen in a consignment of meat at London do...

An experimental vaccine is stolen, and the subsequent test proves deadly. Steed and Keel, suspecting that the human ...

An unusual and sprawling tale of heart disease, industrial unrest, and a consignment of rotten bananas.

How has a research centre developing radiation-proof material managed to irradiate one of its scientists? Once more,...