There are 30 episodes of Slow Horses so far, across five seasons, with six episodes in each season.

Quick Scoop

Seasons and episode count

  • Season 1: 6 episodes.
  • Season 2: 6 episodes.
  • Season 3: 6 episodes.
  • Season 4: 6 episodes.
  • Season 5: 6 episodes, following the same six‑episode format.

That gives a total of 30 released episodes to watch as of early 2026.

Why only six episodes?

  • The show is adapted from Mick Herron’s Slough House novels, and each season tracks closely to one book, which lends itself to a tight six‑episode arc.
  • Creators and directors have explained that the shorter structure keeps the pacing sharp and focused on character and suspense rather than filler.

Latest news and what’s next

  • Season 5 continues with the same six‑episode structure and weekly release pattern on Apple TV+.
  • The series has already been renewed for at least a sixth and seventh season, so more six‑episode batches are on the way if plans stay consistent.

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