how many series of slow horses

Slow Horses is a gripping British spy thriller series on Apple TV+ starring Gary Oldman as the irascible Jackson Lamb, leading a team of MI5 rejects in the misfit department known as Slough House. Adapted from Mick Herron's acclaimed novels, the show masterfully blends dark humor, intricate plots, and sharp character dynamics that keep viewers hooked across its seasons. As of January 2026, five series (seasons) have been released , with seasons 6 and 7 already confirmed and in various stages of production.

Release Timeline

The series has maintained an impressive annual cadence, building a loyal fanbase through consistent quality:

• Season 1 (April 2022): Adapted from Slow Horses , introducing River Cartwright's exile to Slough House after a botched op.

• Season 2 (2022): Based on Dead Lions , escalating intrigue with Cold War echoes.
• Season 3 (November 2023): From Real Tigers , diving into internal MI5 threats.
• Season 4 (September 2024): Drawing from Spook Street , family secrets unravel.

• Season 5 (September 2025): Adapting London Rules , marking showrunner Will Smith's final run amid high-stakes espionage.

This punctual rollout—nearly one season per year—has fueled trending discussions on forums like Reddit, where fans dissect twists and subtitle needs for the rapid-fire dialogue.

What's Next: Seasons 6 & 7

Apple TV+ renewed the series through Season 7 by July 2025, with Season 6 (based on Joe Country) wrapped filming and eyeing a fall 2026 premiere, and Season 7 (Slough House and Bad Actors) starting production in late 2025. Gary Oldman has hinted at the cast's enthusiasm, promising more dysfunctional brilliance despite crew changes.

"Slow Horses has been renewed for a sixth and seventh series, based on the novels Joe Country and Slough House (series 6) and Bad Actors (series 7)."

Fan Buzz & Forum Highlights

Online chatter, especially on Reddit's r/SlowHorses, mixes spoiler warnings, theory-crafting, and viewing tips—perfect for newcomers struggling with the accent-heavy banter:

• Subtitles are a must : Many recommend closed captions to catch every quip.

• Spoiler etiquette : Forums stress tags to protect first-timers.

• Theories abound : Speculation on River's arc and Lamb's past dominates, with Season 5's twists still sparking debates into 2026.

TL;DR : There are 5 series of Slow Horses out now (through 2025), with 2 more confirmed—plenty to binge while awaiting the next Slough House chaos.

Information gathered from public forums or data available on the internet and portrayed here.