India, Oct. 14 -- The penultimate episode of Slow Horses Season 6 raises the stakes for River Cartwright, Sid Baker and Jackson Lamb as the conspiracy surrounding Slough House becomes increasingly dangerous. Titled "Sayonara," Episode 5 follows River's desperate attempt to rescue Sid from Russian assassins Jim and Jane, while Lamb investigates the secret operation that has put his team in danger.

The episode delivers a tense chase, a major confrontation with Diana Taverner and another shocking twist involving MI5. Although River and Sid manage to survive their encounter with the assassins, their troubles are far from over. The ending leaves River in the hands of MI5 operatives and Sid facing the possibility of being handed over to the Ru...