THE SLOUGH HOUSE FILES

Incoming operation · officially confirmed

Slow Horses Series 6

Premieres Wednesday 16 September 2026 on Apple TV, then continues weekly for six episodes through 21 October.

Open on Apple TV ↗Episode schedule
UK release date
16 September 2026
Episodes
6 · weekly
Finale
21 October 2026
Source books
Joe Country + Slough House

What Apple has confirmed

The sixth series adapts Mick Herron’s Joe Country and Slough House. Apple’s official synopsis places the slow horses on the run as Diana Taverner draws them into a high-stakes game of retaliation and revenge.

Adam Randall returns to direct and Gaby Chiappe adapts the season. The announced ensemble includes Gary Oldman, Kristin Scott Thomas, Jack Lowden, Saskia Reeves, Christopher Chung, Aimee-Ffion Edwards, Rosalind Eleazar, Joanna Scanlan, Samuel West, Ruth Bradley, Tom Brooke, Jonathan Pryce and Hugo Weaving, with Lenny Rush joining.

Official trailer

Apple released the Series 6 trailer on 18 August 2026 and announced Sid Baker’s return. Trailer footage is official promotional material, but edited moments are not treated here as episode-by-episode plot confirmation.

Watch the official trailer ↗

Weekly release

Series 6 episode schedule

Titles and story details will be added only after Apple publishes them.

Six Wednesdays

Apple TV

  1. Episode 1

    16 September 2026

  2. Episode 2

    23 September 2026

  3. Episode 3

    30 September 2026

  4. Episode 4

    7 October 2026

  5. Episode 5

    14 October 2026

  6. Episode 6 · finale

    21 October 2026

Update rule: episode titles, credits, images and story details will only be added after official publication. Fan rumours will not be upgraded into facts.

From page to screen

Which books is Series 6 based on?

Two consecutive Slough House novels contribute to this television run.

Reading advice

Read both in order

Joe Country comes first. Screen-first viewers should expect the novels to reveal character outcomes beyond Series 5.

Complete Mick Herron order →

Quick answers

Series 6 questions

When does Slow Horses Series 6 start?

Wednesday 16 September 2026 on Apple TV.

Will all six episodes arrive together?

No. The announced schedule is weekly, ending on 21 October 2026.

Is there an official trailer?

Yes. Apple released it on 18 August 2026; use the official link above.

Is Series 7 confirmed?

Yes. Apple has commissioned six episodes based on Bad Actors, but no premiere date is published here until Apple announces one. Open the Series 7 tracker →