Old Scoresslow Horses : Season 2 Episode 6 May 2026

The Slow Horses Season 2 finale, "Old Scores," concludes the "Cicada" sleeper agent mystery, revealing the bomb threat as a diversion to facilitate the theft of diamonds by Nikolai Katinsky, who sought vengeance against Jackson Lamb. The episode features key confrontations, including Lamb confronting Katinsky and Marcus stopping Pashkin, while solidifying themes of loyalty and the "Slough House way". For a full recap of the episode's events, visit Telly Visions .