Slow Horses Season 6 begins with two murdered former agents, David Cartwright’s funeral, Frank Harkness’s return and a new mystery for Jackson Lamb, who goes on strike.

The team are on the run in the latest adaptation of Mick Herron's spy novels. Read our guide for where to watch Slow Horses season 6 online now – from wherever you are.

Sid Baker was killed off in season 1 of ‘Slow Horses’ — or so fans thought

Jackson Lamb (Gary Oldman) is just as flatulent, inappropriate, and yet strangely adorable in the sixth season of the Apple TV+ thriller series, the action is as inventive as ever, and the scripts as sarcastic and witty as we’ve come to expect.

Ahead of its season 6 release in 2026, Apple TV renewed Slow Horses for an eighth season. The renewal made the British spy thriller series the longest-running show on the streamer, and fans

Even though each season of Apple TV's Slow Horses only has six episodes, the fantastic spy thriller manages to pack in plenty of heart-racing action into a short amount of time. Every season has introduced a new,

River faces a new threat after two former Slow Horses are killed, while his estranged father returns at the worst possible moment.

Kristin Scott Thomas gives a morally gray tinge to “Lady Di” Taverner, who takes over as head of Britain’s MI5 secret service in Season 6.

Slow Horses Season 6 has a fun little surprise for fans, with author Mick Herron making a sneaky cameo in the premiere, which is surprisingly not his first.