Slow Horses Season 5 Reveals Lamb Killed Former Boss

Season 5 of Slow Horses adapts Mick Herron’s London Rules and centers on a London destabilization/terror plot that culminates in attempts on senior officials’ lives. The finale delivers intense action—firefights, a penthouse rendezvous—and heroic moments for characters such as Roddy Ho, while some episodes serve largely as setup. The season peels back a vulnerable, harrowing layer of Gary Oldman’s Jackson Lamb, including a Cold War tale and the revelation that he killed his former boss, Charles Partner, recasting him as a damaged but protective, father‑figure leader. Critics praise the show for deepening character relationships over spy‑genre tropes, with Oldman’s performance singled out for acclaim. The series continued its weekly Apple TV+ release schedule, and the finale has prompted wide discussion among critics and podcasts about the show’s direction and impact.