As of July 2026, The Avengers Season 1 aired in 1961 with 26 episodes — streaming now on Amazon Prime Video. Full episode guide and where to watch below.

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The Avengers Season 1

1961 26 Episodes Action & Adventure · Crime ⭐ 8/10

Right now you can watch The Avengers Season 1 on and — and it goes further with its ideas than most genre entertainment bothers to. A compact run that never overstays its welcome. Its 8/10 TMDB score, built from 151 ratings, reflects a title that consistently delivers. 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.

The Avengers Season 1 is not trying to be everything to everyone, and that focus is exactly what makes it work. What makes The Avengers Season 1 work is that the ideas never crowd out the people having them. "Girl on the Trapeze," "The Frighteners," "Tunnel of Fear" and the first act of "Hot Snow" are the episodes known to exist of the first series. Patrick Macnee and Ian Hendry lead a cast that brings real weight to the material. It was aired in 1961. The rules of The Avengers Season 1's world are consistent enough that the big swings never feel like cheating. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

The Avengers Season 1 is satisfying on multiple levels — something to watch and something to think about after. 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's performance is the anchor the more ambitious moments need. The world-building pays off in ways you will not anticipate on a first watch.

📡 Where to Watch The Avengers Season 1

🇺🇸 United States

Amazon Prime Video

Peacock Premium

Amazon Prime Video with Ads

Peacock Premium Plus

🇬🇧 United Kingdom

STUDIOCANAL PRESENTS Apple TV Channel

Studiocanal Presents Amazon Channel

🇨🇦 Canada

Amazon Prime Video

Amazon Prime Video with Ads

🎬 The Avengers Season 1 — Episode Guide

Following the death of his fiancee Peggy at the hands of heroin smugglers, Dr David Keel vows to track down the killers and avenge his lost love. He is aided in his quest by a mysterious stranger, John Steed.

Brought to Book

Steed has infiltrated a gang, led by Mason, which is implicated in Peggy's murder. Steed asks Keel to establish contact with a rival gang, and the doctor discovers that Vance's hitman, Spicer, has been sent to kill Steed.

Square Root of Evil

Steed impersonates Riordan, a forger soon to be released from prison, and gains the trust of gang-leader Hooper. Things seem to be going well until Hooper's second-in-command, known as the Cardinal, announces that Riordan's girlfriend is outside waiting to see him.

Keel receives a 'phone call from one of his patients, and ends up assuming the identity of her missing husband, a scientist engaged in secret research. Shot in the chest, Keel needs a minor operation - but the anaesthetist has tampered with the oxygen.

A young girl, Carmelite Mendoza, has been kidnapped from a Caribbean island, but Steed suspects a political motive. His suspicions are confirmed when Vasco, the Mendoza family retainer, is observed killing the original kidnapper and abducting the girl himself.

Girl on the Trapeze

Keel, reviving a young woman who has jumped into the Thames, is led to the Radeck State Circus, where the trapeze girl is guarded, her face covered by bandages because of an accident. The 'trapeze girl'proves to be the daughter of a defecting scientist, who will be used to force her father to retur...

Diamond Cut Diamond

Steed, attempting to break a gang of international diamond smugglers, is living in a bungalow near Heathrow Airport which was once owned by a suicide whom One-Ten suspects of involvement. Steed awakens one morning somewhat the worse for drink, when a phone call advises him to check the morning pape...

The Radioactive Man

Dr Keel is asked to help in the search for a man who has picked up a radioactive isotope, not knowing that it will quickly kill him and harm anyone else he comes into contact with. But Marko, fearing that the police want to find him because of his forged passport, has already gone into hiding.

Steed, investigating a number of probable arson cases, is led to the hairdressing salon of Olive and Jacques Beronne. He asks Keel to let Carol investigate the salon, but after she enters, there is an explosion from within

Hunt the Man Down

Frank Preston is released from prison and is intent on reclaiming the hidden proceeds of his robbery. So is Steed, who has been ordered to follow the man. So are a couple of thugs, who kidnap Carol. So is Preston's scheming wife, eager to get her hands on the one hundred thousand pounds hidden so...

Please Don't Feed the Animals

Steed trails a blackmailed civil servant to Brinkley House, a private zoo, only to observe the man throwing a package of money into the reptile pit. The package soon vanishes. The man is then ordered to steal a top secret file.

Dance with Death

Dr. Keel resuscitates Elaine Bateman, the owner of a ballroom dancing school who has narrowly survived a murder attempt by gassing. When he returns to the school after dropping his scarf, he is arrested. His scarf has been used to strangle the woman.

One for the Mortuary

When Keel attends a health conference in Geneva he is unaware that he is carrying, in microdot form, a vital new medical formula - unaware, that is, until he is arrested for murder.

Steed is trying to track down the organisers of a group who offer to spring any convict - even the dangerous ones - from prison if they're paid the right money. Keel impersonates a prisoner, and the trail seems to lead to a girl's finishing school.

The Frighteners

To stop his daughter seeing suspected conman Jeremy de Willoughby, Sir Thomas Waller has hired arch-criminal the Deacon to 'put the frighteners on'. Steed is on the trail of the Deacon and, with the aid of Dr. Keel, stops two thugs from seriously wounding de Willoughby. They set a trap for the Dea...

The Yellow Needle

After an unsuccessful murder attempt against Sir Wilberforce Lungi, Steed asks Keel, an old friend of the pro-Western African leader, to investigate Lungi's secretary, Jacquetta Brown. Meanwhile, Steed flies to Africa to meet Lungi's tribalist rival, Shebro.

Death on the Slipway

An agent has been killed at the secret dockyard where submarines are built. Steed investigates, and finds that a foreign spy has been arranging 'accidents' for him.

Keel, called to deal with a man seriously injured by an accident, quickly discovers that the man is suffering from gunshot wounds, and that he may be implicated in a recent diamond robbery.

Keel is asked by the improbably named Bunty to help her find her missing friend. What is the connection between the department store where the women work and a call-girl racket?

Top-secret information is finding its way into the wrong hands, and the source seems to be a south coast fairground. Steed succeeds in getting hypnotised and winds up in the ghost-train tunnel. With frightening results, of course.

🎭 Cast of The Avengers Season 1

Patrick Macnee

Ian Hendry

📋 All Seasons of The Avengers

Season 2 Season 3 Season 4 Season 5 Season 6

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