Jin seeks justice after a death rattles the group. Investigators learn of an extremist group devoted to an otherworldly entity ahead of a major summit.
James scrambles to mitigate the scandal’s impact, while a devastated but determined Sophie remembers happier moments and Kate debates her next move.
Taverner and the Slow Horses attempt different approaches to locate the kidnappers and Hassan. Ho makes a shocking discovery about Sid.
Slough House is the unlikely venue for a secret romance, but events take a dark turn when a dangerous encounter becomes deadly.
