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How to Watch ‘Slow Horses’ Season 4: Live Stream, Start Time, More

With a background in sports and entertainment reporting, he’s covered everything from Broadway to college football. He cut the cord in 2014 and has a sharp eye for streaming trends and a soft spot for Hallmark movies.

One of the best shows on television returns for its fourth season this week. Apple TV+ debuts the latest installment of “Slow Horses” on Wednesday, Sept. 4. The British spy dramedy centers on a motley group of outcast MI5 agents who are shuffled off to a dingy London outpost known as Slough House. Based on the novels by Mick Herron, the series is led by Oscar-winner Gary Oldman as the slovenly and flatulent — but brilliant — Jackson Lamb. You can stream the first episode of “Slow Horses” Season 4 starting at 12:01 a.m. ET on Wednesday with a 7-Day Free Trial of Apple TV.

How to Watch ‘Slow Horses’ Season 4

About ‘Slow Horses’ Season 4

Through the first three seasons of “Slow Horses,” we have seen Jackson Lamb, River Cartwright (played by Emmy-nominee Jack Lowden), and the rest of Team Slough House bumble their way through some of the biggest espionage plots in Great Britain. As Season 4 approaches, Apple TV+ is being very tight-lipped about the plot. However, we do know that it will be based on Herron’s novel “Spook Street.”

In that book, River Cartwright’s grandfather (played by Jonathan Pryce) who was once one of the most important spies in MI5 begins to forget things. While that is common for people as they age, what happens when an old spy who knows too many secrets can’t remember that they are supposed to be secret? When a bomb is detonated in the middle of a busy shopping center in London, killing dozens of innocent people, the slow horses must race to figure out who is behind this act of terrorism before it escalates even further.

In addition to 2024 Emmy nominees Oldman, Lowden, and Pryce, the “Slow Horses” cast includes Kristin Scott Thomas, Saskia Reeves, Rosalind Eleazar, Christopher Chung, Aimee-Ffion Edwards, and Kadiff Kirwan. Joining the ensemble this season will be Hugo Weaving, Joanna Scanlan, Ruth Bradley, Tom Brooke, and James Callis.

What Else Should You Watch on Apple TV+ if You Like ‘Slow Horses’?

Since launch, Apple TV+ has become known as one of the most reliable streaming platforms when it comes to producing high-quality content. That includes both series and films, and currently, you can watch the new season of acclaimed multi-language drama “Pachinko” and the first three seasons of star-studded drama “The Morning Show” are available to stream now. Also, the new show “Bad Monkey” feels like a perfect companion to “Slow Horses.” The show follows a down-on-his-luck detective, played by Vince Vaughn, who finds himself in the middle of an absolutely wild case of murder, fraud, and voodoo.

For more prestige titles, Apple TV+ is the only place to find the award-winning period drama”Killers of the Flower Moon,” as well as fashion drama “The New Look,” and World War II epic “Masters of the Air.”

Apple TV+ only has one subscription plan, which runs $9.99 per month. However, all new customers get a seven-day free trial to see if the service has the types of titles that they are interested in.

  • Apple TV

    Apple TV (formerly known as Apple TV+) is a subscription video streaming service for $14.99 per month, offering a growing slate of original series, films, documentaries, and specials. Unlike other platforms that combine licensed titles with originals, Apple TV is built entirely around exclusive programming, making it the home of critically acclaimed hits such as “Ted Lasso,” “Severance,” “The Morning Show,” and “Silo.” Its lineup continues to expand with award-winning dramas, comedies, family-friendly shows, and blockbuster original films like “CODA,” which won the Academy Award for Best Picture.

    …

    In October 2025, Apple TV agreed to a deal with Formula 1 to exclusively broadcast all Formula 1 races starting with the 2026 season.

    Apple TV also features coverage of all regular-season matches for Major League Soccer (MLS) at no additional cost.

    On August 28th, 2026, the price of Apple TV was increased from $12.99 per month to $14.99 per month, the second increase in as many years.

    The service is available worldwide through the Apple TV app, which is built into Apple devices and supported on most smart TVs, streaming players like Roku and Fire TV, game consoles, and web browsers. Subscribers can watch on demand, download episodes and movies for offline viewing, and stream in 4K with Dolby Vision and Dolby Atmos, where available. Apple TV also offers family sharing, allowing up to six people to use one subscription at no extra cost.

    With a competitive monthly price and bundles available through Apple One — which combines Apple TV with Apple Music, Apple Arcade, iCloud storage, and more — the service continues to grow as a key part of Apple’s ecosystem. Apple TV delivers one of the strongest collections of exclusive content in the streaming space for viewers seeking prestige originals, cinematic storytelling, and seamless access across devices.

Watch the 'Slow Horses' Season 4 Trailer:


Matt Tamanini is the News Editor at The Streamable, where he oversees daily news coverage and editorial strategy, with a particular focus on breaking stories, streaming comparisons, and major industry events. A well-rounded journalist with a diverse background, Matt joined The Streamable in 2022 after holding key editorial roles at several high-profile outlets. He has an extensive career in sports and entertainment journalism, having served as a senior editor for BroadwayWorld, the world’s largest theater website, and as managing editor for Land-Grant Holy Land, which covers Ohio State sports.

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