Slow Horses: Season 6
In season six, the Slow Horses are on the run as Diana Taverner embroils them all in a fatally high-stakes game of retaliation and revenge.
Season 6 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Slow Horses Season 5.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Season overview
In season six, the Slow Horses are on the run as Diana Taverner embroils them all in a fatally high-stakes game of retaliation and revenge.
Episode Guide
Season 6 Progress Shield
Circle of Life
Sep 16, 2026 · 48 min
River braces for his grandfather's funeral. Lamb looks into the death of an ex–Slow Horse.
Daddy Issues
Sep 23, 2026 · 47 min
The reemergence of Frank Harkness and a suspicious string of murders put Lamb and team on high alert.
Resurrection
Sep 30, 2026 · 49 min
Ex–Slow Horses return to the fold as assassins close in. Taverner faces the fallout of her TV interview.
Lost & Found
Oct 7, 2026 · 50 min
Lamb tries figuring out who Frank is working for. Sid, River, and Coe do everything to evade the hit squad.
Sayonara
Oct 14, 2026 · 48 min
River goes after Sid. Lamb sets his sights on Cantor. Taverner carries on with a treacherous deal.
Judgement Day
Oct 21, 2026 · 60 min
The safe house becomes unsafe as Lamb and Taverner finally join forces.