Slow Horses Season 6 Episode 4: Coe's Death and the Shake Shack Standoff

Key points

• Vulture critic Scott Tobias rates the episode four stars, praising the dialogue between Lamb and Harkness over the action sequences.
• J.K. Coe dies in a bathroom fight against Russian assassin Jim, a scene Tom Brooke had requested since Season 4.
• Diana Taverner strikes a deal with Russian handler Vassily to hand over Sid Baker in exchange for a ceasefire.
• The episode features multiple action sequences, including a bowling alley shootout and a mall confrontation.
• Tom Brooke expressed satisfaction with the final scene, noting it fulfilled a long-standing creative goal for the character.

Background

Slow Horses Season 6, which premiered in September 2026, adapts Mick Herron's novels 'Joe Country' and 'Slough House.' Previous coverage noted that the season elevates Diana Taverner to a top MI5 position, creating a power dynamic that drives the season's conflict. The third episode, 'Resurrection,' introduced high-octane action and the return of Sid Baker, setting the stage for the intense survival scenarios seen in episode four.

How outlets are covering it

Vulture emphasizes the narrative tension and character dynamics, specifically highlighting the 'Shake Shack' scene between Lamb and Harkness as the most entertaining part of an action-heavy episode. In contrast, TV Insider and Decider focus on the production and creative history behind Coe's death, with Tom Brooke and co-executive producer Gaby Chiappe discussing how the scene was adapted from the books to fit the series' arc. The Independent notes the emotional impact on the cast, particularly regarding the loss of a cast member, while Vulture focuses on the plot mechanics and the 'thrill machine' pacing of the season. There is no significant disagreement on facts, but the emphasis differs between critical analysis of the episode's quality and behind-the-scenes insights into the character's exit.

Why it matters

The death of J.K. Coe marks a significant shift in the Slough House team dynamics, removing a key member and increasing the stakes for the remaining agents. The episode's pacing and the introduction of new threats, such as the Russian assassins, signal a darker and more violent direction for the season. Additionally, the behind-the-scenes insights from the cast and producers provide context for the creative decisions driving the narrative, highlighting the show's commitment to character arcs and adaptation from source material.

What to watch

The next episode will likely focus on the aftermath of Coe's death and the ongoing pursuit of Sid Baker by the Russian assassins. The deal struck by Diana Taverner may have consequences for the Slough House team, and the remaining agents will need to navigate the escalating threat. The show is expected to continue its high-octane pace, with potential new developments in the Lamb-Harkness dynamic and the fate of the other Slough House members.