Slow Horses season six finale 'Judgment Day' airs in the US on 21 October 2026

Apple TV lists the Slow Horses season six finale, 'Judgment Day', as airing in the US on Wednesday, 21 October 2026. Forbes gave the same US release date. Apple's official description says the safe house becomes unsafe as Lamb and Taverner finally join forces. Gary Oldman stars as Jackson Lamb. The finale is episode six of the season.