In investigating the death of a colleague who has died in a fire Steed and Mrs. Gale find an ornately-carved chess piece in the dead man's possession. This leads them to ...

Young Highland Guardsman Corporal Craig is found shot, his corpse containing bullets from three separate guns. He has been shot by a firing squad, for treason, and when S ...

Stefan Veliko, a young Russian pianist, is making his concert debut in London. However, he is being used as a pawn in a game to wreck Anglo-Soviet relationships. First a ...

Agent Vinkel is the latest spy from 'the other side' to get polished off and, as ever, Steed is implicated but he persuades the opposition it would be best for the two ca ...

Five years earlier the British Secret Service ordered Mark Charter to assassinate Sharp, a renegade British agent who defected to the enemy state of Abarain. But now the ...

Angered by a noisy motor bike gang who ride on their land, elderly sisters Cynthia and Ermyntrude Peck, who claim to be witches, cast a spell which causes all the motor-b ...

Whilst protecting the race horse of a visiting dignitary in England for the current racing season Steed observes that George Meadows, owner of the livery stables, is beha ...

An agent is killed at a wine shop and Steed realises that one of two brothers ,Frederick Paignton, who works in the shop, has been blackmailed by his boss into the murder ...

Steed attends the funeral of a former colleague and not only suspects foul play but is struck by the fact that the tiny, isolated Cornish churchyard contains the corpses ...

When five British agents working on the Corinthia espionage line between Austria and Hungary disappear, Steed is sent to investigate. Sadly for him, the sole survivor, Ha ...

The late reverend Harbottle was not what he seemed, as the gun and the antique German doll containing a micro-film,found in his belongings testify. In fact he was a membe ...

Snowy, an albino elephant, is stolen from Noah's Ark, a specialist zoo run by Noah Marshall, specializing in distributing rare animals. Mrs. Gale's experience of living i ...

All of the country's early warning systems bar one go off, mistakenly suggesting a nuclear attack. When land is about to be sold, adjacent to the one that was not sounded ...

A Middle eastern emir, Abdulla Akaba, comes to London as he does every year for his health check up by specialist doctor Spender. Steed believes that the emir will be kil ...

Mrs. Gale is invited to spend a weekend at the stately home of Sir Cavalier Rasagne, an authority on medieval costume. However, when she arrives there is no sign of her h ...

Leaving a Chinese restaurant Steed picks up the wrong coat and finds a cheque to the value of £5,000 drawn to a bank in Hong Kong. It becomes evident that the restaura ...

When a spate of strange diseases breaks out on a global scale, the Avengers find out that grain being distributed by the United Food and Dressing Limited, has been delibe ...

Steed discovers that somebody is flooding the market with cheap imitations of medical products being manufactured by the Willis-Sopwith Pharmaceutical Company. Furthermor ...

Steed is involved in the escort of a pair of corneas to be used in a graft to give sight to Martin Halvarsson, a millionaire who has been blind since the Second World War ...

J. P. Spagge is an international criminal mastermind and The Avengers have a plan to trap him. They pose as thieves out to steal three million pounds worth of gold from a ...

Michael Dyter, the newly elected M.P. for South East Anglia, is assassinated after he has threatened to expose a government plot concerning the theft of a nuclear warhead ...

Steed attends the funeral of his former batman Wrightson, who had become a draughtsman on a modest salary in civilian life. However, at the will reading everyone is shock ...

The Nutshell is the name of a secure underground bunker, to be used by the government in the event of a nuclear war and Steed and Mrs. Gale are shown around it. When mili ...

A young government official staying at a holiday camp is killed and replaced by an exact double, part of a plan to gain information. Two other doppelgangers are also part ...

A man whom Steed was to escort to New York disappears, before re-surfacing at the Adelphi Park Retirement Home. Then his neighbour turns up there. All the residents at th ...

The Avengers are tasked to investigate the Lakin brothers, two elderly lawyers with an amazing success record, having recently had an obvious traitor acquitted. In order ...

Steed suspects that the gymnasium Cathy is using to train a prize-fighter is actually the front for a gang of ambergris smugglers. ...

Cathy's quiet weekend visiting with a friend is ruined by treachery, scheming and mysterious accidents. ...

Steed survives an attempt by the Mafia to assassinate him for interfering with their drug traffic and tracks the would-be killers to a smaller provincial circus. ...

A famous astronomer predicts that the entry into the solar system of a small star will result in the destruction of the Earth. Steed and Cathy try to discover the connect ...

A thief steals two gold-plated eggs from Dr. Ashe, not realizing they house a deadly virus. Even though the burglar becomes extremely ill, he refuses to reveal where he h ...

Steed is asked to guard a revolutionary new formula for fuel when its inventor is discovered in a coma. When he learns that the scientist was a member of a black magic cu ...