Slow Horses
MI5's most unruly spies are back and under attack.
Follow a dysfunctional team of MI5 agents—and their obnoxious boss, the notorious Jackson Lamb—as they navigate the espionage world's smoke and mirrors to defend England from sinister forces.
Episodes
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.
1Circle of Life
48 minSep 16, 2026★ 8.1
River braces for his grandfather's funeral. Lamb looks into the death of an ex–Slow Horse.
2Daddy Issues
47 minSep 23, 2026★ 8.4
The reemergence of Frank Harkness and a suspicious string of murders put Lamb and team on high alert.
3Resurrection
49 minSep 30, 2026★ 7.7
Ex–Slow Horses return to the fold as assassins close in. Taverner faces the fallout of her TV interview.
4Lost & Found
50 minOct 7, 2026★ 8.1
Lamb tries figuring out who Frank is working for. Sid, River, and Coe do everything to evade the hit squad.
5Sayonara
48 minOct 14, 2026★ 8.3
River goes after Sid. Lamb sets his sights on Cantor. Taverner carries on with a treacherous deal.
6Judgement Day
62 minOct 21, 2026★ 8.1
The safe house becomes unsafe as Lamb and Taverner finally join forces.
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Series cast
