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. ...

While on holiday in Greece, Steed becomes involved in the investigation of a deep sea diver's mysterious death. ...

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. ...

Venus Smith's camera and film are stolen at a fair. When Venus develops the one roll remaining in her possession she discovers she has taken a photograph of a man thought ...

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 ...

Steed investigates the alleged suicide of a college instructor and discovers that the weapon the man used to kill himself was a pistol with a silencer attached. ...

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 ...

Steed traces stolen classified documents to a nightclub where Venus Smith is working as a magician's assistant. ...

Cathy's friends claim to have invented an unbreakable ceramic. Sinister forces want the formula for uses that have nothing to do with cups and saucers. ...

Cathy Gale impersonates a female assassin in order to get evidence needed to break up an international criminal syndicate. Before Cathy can complete her mission, the real ...

A Canadian plane crashes under mysterious circumstances in Ireland. Steed's leads take him to the Shamrock airport and a convent, while Dr. King performs autopsies on the ...

A British courier dies defending a diplomatic pouch, but the unopened satchel contains only routine documents - or did it contain something vital that is now missing? Ste ...

A powerful computer used to target incoming missiles continually breaks down. When one of scientists who developed the machine is found dead inside it, Steed and Cathy ar ...

Steed and Cathy investigate security leaks at a secret Navy base which renders its missile defense system useless. The trail leads to a sweet shop and the local pub with ...

Steed and Cathy investigate the death of diamond importer's wife and its connection to smuggled diamonds that are flooding the market. ...

While guarding a United Nations negotiator after an assassination attempt, Steed and a colleague fall under suspicion for selling state secrets. ...

Steed investigates when the autopsy of a automobile accident victim reveals 50,000 pounds worth of diamonds in his stomach. ...

A stamp collector is murdered after he discovers an extremely rare penny stamp being offered for sale on the open market. Cathy takes a job in the stamp collectors store ...

Steed is ordered to infiltrate a gang of assassins. His appointment with their leader is in a small jazz club where Venus Smith is singing. ...

A microfilm of North American early warning plans has been stolen and is believed to be somewhere in the luggage of a fading film star. Steed and Dr. King are assigned to ...

The Home Office becomes concerned when gunrunning to Africa increases and the stockholders of a prominent British gun manufacturer are being murdered one by one. Cathy bu ...

The president of a Balkan Republic is menaced by a masked assassin. Although Steed is sent to augment the visiting dignitary's security detail, his bodyguards are murdere ...

Steed and Cathy travel to Marseilles to pick up a flask of a secret new rocket fuel. When they arrive at the airport, they find the bottle gone and their contact dead. Th ...

One-Ten is convinced that the man is murdered while being interviewed on a live television show was the victim of a hired-killer called Mr. Teddy Bear. He concocts a plot ...

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