How many episodes are in Betrayal?

Betrayal has 4 episodes in this listed season.

When does Betrayal premiere?

Betrayal premieres on 2026-08-04.

Is Betrayal a new series?

Betrayal is a new series (Season 1).

NEW

Betrayal(2026)

Archived · ITV1

4 eps

S01

CrimeMysteryThriller

ON AIR: AUG 4Season 1Archived listing

What to Expect

PremiereLens read

Betrayal turns the intelligence office into uneasy territory, with colleagues becoming suspects and professional loyalty offering little certainty about whom to trust. Its espionage mystery unfolds across connected episodes, releasing secrets gradually rather than delivering quick answers. Each reveal changes the meaning of earlier scenes, giving the suspense a watchful quality: danger may be inside the room as well as out in the field.

Marriage and parenthood bring a different kind of pressure to the officer’s working life. Decisions made in the name of national security carry personal costs at home, where loyalty also comes under strain. His experience stopping terrorist plots offers no easy answer to a workplace whose values and methods have changed, or to the demands of a family living with the consequences of his work.

Best for

espionage suspense, office intrigue and Crime

Story lane

Crime and Mystery

Commitment

Season 1 · 4 episodes

Where

ITV1

Official Premise

A veteran MI5 officer who helped prevent major terrorist plots now faces a changed workplace and evolving threats to national security. Married with two children, he must adapt to new professional values while managing growing pressures at home and in the field.

Watch Next If This Is Your Lane

Start with the closest match, then check out two more shows with a similar feel, pace, mood, or theme.

Secret Service

ITVX • Apr 27, 2026

DramaEspionage

A British intelligence officer races against time to uncover a UK politician's potential ties with the Kremlin, risking her reputation and family, as a murder and election loom.

View show

Strongest Match

Betrayal and Secret Service make spy work feel dangerous at the office and costly at home, with suspicion tightening around every conversation. Secret Service moves faster, as a murder and election deadline press a British intelligence officer while her marriage and standing with her boss begin to fray.

Slow Horses

Apple TV • Sep 16, 2026

CrimeDrama

Slough House is a dumping ground for members of the intelligence service who've screwed up: left a service file on a train, blown a surveillance, or become drunkenly unreliable. They're the service's poor relations. The slow horses and most bitter among them is River Cartwright, whose days are spent transcribing mobile-phone conversations. But when a young man is abducted, and his kidnappers threaten to behead him live on the Internet, River sees an opportunity to redeem himself. But is the victim who he first appears to be? And what's the kidnappers' connection with a disgraced journalist? As the clock ticks on the execution, River finds that everyone involved has their own agenda.

View show

Why this pick

Betrayal and Slow Horses turn British intelligence offices into places where colleagues are hard to trust and danger can break through routine. Slow Horses adds dry jokes and a scruffy team of demoted agents, while its sudden violence keeps the office comedy from easing the tension.

The Capture

BBC One • Jun 18, 2026

CrimeDrama

After ex-soldier Shaun Emery's (Turner) conviction for a murder in Afghanistan is overturned due to flawed video evidence, he returns home a free man to his young daughter. But when CCTV footage from a night out in London comes to light, Shaun's life takes a shocking turn and he must soon fight for his freedom once again. With DI Rachel Carey (Grainger) drafted in to investigate Shaun's case, she quickly learns that the truth can sometimes be a matter of perspective. Should she trust Shaun Emery?

View show

Why this pick

Betrayal and The Capture keep you watching for the moment a trusted account stops adding up, with tense scenes built around suspicion and shifting loyalties. The Capture is faster and more focused on surveillance, as a detective questions what CCTV shows while Betrayal also lets family strain complicate its spy drama.

Want the bigger picture?

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