A Case of Interrogation: A military dentist extracts more than teeth, interrogating an officer mercilessly; the man is beaten by some guards, and then offered a cup of tea!
A Deadly Gift: Someone is killing the great industrialists of England, someone with extraordinary strength and determination.
A Grave Charge: A woman is found wandering in a field, dressed in a nightgown. Cordell discovers she's fallen from a train, and she recalls a man climbing out of a coffin and throwing her out.
All Done By Mirrors: A ministry agent, hot on the heels of a traitor, tracks him to a meeting with his contact, but there's no-one there! Just a mirror on the doctor's headband.
Dial A Deadly Number: City gents - luminaries of British industry and bankers - are dropping dead of sudden heart attacks and someone's making a lot of money in the process.
From Venus With Love: Steed and Mrs Peel have to investigate when astronomers start turning white while observing Venus. Have the Venusians invaded earth, as Primble suggests to Steed? Are aliens killing the rich patrons of the British Venusian Society?
Getaway: A high security prison in a monastery is in turmoil, after literal disappearance of one of the inmates, a Russian assassin called Rostov.
Love All: A top secret Whitehall meeting breaks up, with the chairman, Sir Rodney, telling his servants everything is top secret, but seconds later he's bleating every detail to a charlady he's smitten with.
Not To Be Sneezed At: Ear, Nose and Throat specialists start coming down with profoundly fatal cases of the common cold, alerting the Ministry that something's in the wind. A slender lead points to a nursing academy which Steed finds has ties to a medical research institute run by an eccentric ex-colonial.
Straight From The Shoulder: Some new high-powered assault rifles have been stolen. The avengers are assigned to the case and find they are being auctioned off, with a notorious African colonel being the expected buyer; he plans to overthrow his country's president with the arms.
Stop Me If You've Heard This: A director of a construction company is killed by two clowns and the Avengers are sent in to investigate because his firm was contracted to build a top secret underground bunker for Parliament, codenamed Project CUPID.