From SlashFilm · Ben Pearson · · 50s
Slow Horses Season 6 Cliffhanger Explained
Head writer Gaby Chiappe reveals how 'Slow Horses' Season 6's ending trusts viewers to piece together the poisoning twist.
In brief
Head writer Gaby Chiappe reveals how 'Slow Horses' Season 6's ending trusts viewers to piece together the poisoning twist. Slow Horses Season 6 ends with River Cartwright realizing he's poisoned by a crowbar after Sid Baker, trusting viewers to connect the dots without explanation. Originally reported by SlashFilm.
Head writer explains ending choice
Head writer Gaby Chiappe says the show trusts viewers to understand the poisoning twist without flashbacks.
“We talked about it, definitely talked about it a lot, and how to make it land kind of as it does in the novel”
Season 6 finale twist
River Cartwright touches a poisoned crowbar after Sid Baker waits for him at his grandfather's house.
“River deduces that Sid Baker is waiting for him at his grandfather's house”
Poisoning connection

The crowbar was poisoned by Kyle Soller's 'Jim' character earlier in the season.
“it's the crowbar in [the show]”
Writer's approach
Gaby Chiappe says the show mirrors Mick Herron's novels with subtle clues for viewers to piece together.
“I think a lot of care went into that, and I think it's kind of ... [director] Adam [Randall] has calibrated that just right”
Audience reaction
Viewers will likely rewatch to confirm they understood the poisoning twist.
“people will be going back to just double-check that that was what they think it was”
The big picture
Slow Horses Season 6 ends with River Cartwright realizing he's poisoned by a crowbar after Sid Baker, trusting viewers to connect the dots without explanation.




