As of July 2026, The Avengers Season 4 aired in 1965 with 26 episodes — streaming now on Amazon Prime Video. Full episode guide and where to watch below.
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The Avengers Season 4

1965 26 Episodes Action & Adventure · Crime ⭐ 8/10

The Avengers Season 4 has built a real following on and among viewers who want their sci-fi to think as hard as it looks. A single, tightly-focused season means there is plenty to get through without ever feeling padded. 151 viewers have already rated it on TMDB — the kind of consensus that does not happen by accident. Patrick Macnee leads a cast that never lets the concept overwhelm the characters. Available now — press play and find out why people keep recommending it.

Whatever else is competing for your attention this week, The Avengers Season 4 is worth clearing space for. The Avengers Season 4 treats its concept seriously enough to follow it all the way through. Season 4 of The Avengers includes 26 episodes. It aired from October 1965 to March 1966. This season stars Patrick Macnee and Diana Rigg. Patrick Macnee and Diana Rigg lead a cast that brings real weight to the material. It was aired in 1965. What separates The Avengers Season 4 from lesser genre entertainment is a willingness to let the concept cost the characters something. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

For late-night viewing or a proper weekend binge, The Avengers Season 4 fits the bill. It has built its own audience without needing a direct comparison. It is a manageable watch, easy to fit into a single week. Patrick Macnee anchors it with a performance that makes the more abstract moments feel personal. If you have been burned by ambitious sci-fi before, this is the exception.

📡 Where to Watch The Avengers Season 4

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🎬 The Avengers Season 4 — Episode Guide

E1
The Town of No Return
1965-10-02
Four agents have vanished, looking for each other, in Little Bazeley-by-the-Sea. Steed and Emma go in for the man who went in for the man who.... and meet the odd local landlord, blacksmith and vicar. Are they more than they seem?
E2
The Gravediggers
1965-10-09
Has the late Dr Marlow's proposed radar-jamming system been tested against British defences? If so, the dead scientist seems to be doing it from his grave. And what's the connection with the local hospital's bizarre operations and a train-crazy philanthropist?
E3
The Cybernauts
1965-10-16
A vastly strong, bullet-proof killer homes in on and destroys several electronics executives. Could it have something to do with Dr. Armstrong's automated work place? Or with the activities of a nearby karate school...
E4
Death at Bargain Prices
1965-10-23
When an agent is killed in the lift of Pinter's Department store, Steed and Emma get involved with King Kane, a tycoon who lives in a penthouse above the store. Why is Professor Popple, a missing atomic scientist, being held in the bargain basement?
E5
Castle De'ath
1965-10-30
Why have all the fish vanished from the Scottish coastline? Does it have anything to do with a dead frogman, found stretched as if on a rack? Steed and Emma think so, which is why they're guests of Ian, the 35th Laird of Clan De'ath, and in danger of being caught by the gillies.
E6
The Master Minds
1965-11-06
A government official, dresssed as one of the Horse-guards, helps in a raid on secret files and is wounded. Recovering, he remembers nothing. Is his crime anything to do with his membership of Ransack, a club for those with high IQs? Emma can join, but Steed may have to cheat....
E7
The Murder Market
1965-11-13
What could an outbreak of motiveless murders have to do with the activities of a marriage bureau called Togetherness Inc.? Well, think of Hitchcock's 'Strangers On A Train' and you'll be close. Steed and Emma seek their ideal partners....
E8
A Surfeit of H2O
1965-11-20
A poacher drowns in a field during a freak storm, and Jonah, the village carpenter, starts building an ark. But Steed thinks it's all got more to do with the permanent cloud that hangs over Grannie Gregson's Glorious Grog factory.
E9
The Hour that Never Was
1965-11-27
Following a motor crash, Steed and Emma explore the seemingly deserted RAF Hamelin, where they were heading for a party to celebrate the base's closure. Is this surreal landscape all a dream, or is it something worse?
E10
Dial a Deadly Number
1965-12-04
A series of sudden deaths in high finance leads Steed to dabble in shares while Emma investigates the makers of executive paging devices. Are companies being acquired through a simple and subtle form of murder?
E11
Man-Eater of Surrey Green
1965-12-11
Deaf botanist Alan Carter's fiancee walks away from their floral bliss under some strange influence, and is picked up by an entranced chauffeur. Has it got anything to do with the giant seed from outer space that has landed nearby?...
E12
Two's a Crowd
1965-12-18
Colonel Psev, a mysterious and unseen foreign spy with a toy fixation, arrives in London to infiltrate a defence conference. His four aides bully Brodny, the ambassador, until he comes up with a cunning ruse: Gordon Webster, rakish male model, is Steed's double.
E13
Too Many Christmas Trees
1965-12-25
Christmas. Steed is having bad, seemingly prophetic, dreams, involving festive themes and a dead agent. Can he find solace at a fancy-dress party in the country home of a Dickens enthusiast?
E14
Silent Dust
1966-01-01
The lack of martens in a pleasant stretch of English countryside alerts Steed to the possible release of a fertiliser that has failed, reducing a landscape to a wasteland. But why is the local farming community so aggressive?
E15
Room Without a View
1966-01-08
A brilliant scientist reappears at the house of his wife. Has he escaped from notorious Manchurian prison camp Ni-San? And why have so many missing people stayed at the Chessman Hotel? Steed and Emma book in.
E16
Small Game for Big Hunters
1966-01-15
When a man is found under Shirenzai, the trance-like Kalayan voodoo, in the heart of Hertfordshire, Steed finds himself amidst the horror of the last days of empire. Are bandits loose in the English countryside?
E17
The Girl From Auntie
1966-01-22
Steed returns from holiday to find that a quite different Mrs. Peel is inhabiting his old friend's flat. With the aid of actress Georgie Price-Jones, he discovers that Art Incorporated and the Arkwright Knitting Circle are doing more together than just sharing needles.
E18
The Thirteenth Hole
1966-01-29
An agent is shot on the thirteenth hole of the Craigleigh golf club, so Steed and Emma join the club. Steed puts his limited skills to use in a murderous tournament, but Emma helps him get a hole in one.
E19
Quick-Quick Slow Death
1966-02-05
An agent is run over disposing of the body of a man in a dinner suit, while he was pushing him along in a pram. This all has something to do with Terpsichorean Training Techniques, a dance school where Emma teaches and Steed enrols.
E20
The Danger Makers
1966-02-12
Several military figures have been killed in dangerous games of daring. Emma and Steed follow the trail to a secret society of military men with very dangerous aims.

🎭 Cast of The Avengers Season 4

Patrick Macnee
Patrick Macnee
John Steed
Diana Rigg
Diana Rigg
Emma Peel

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