“Slow Horses” is back and better than ever for its second season, though things are not as simple as they seem when the Slough House takes on a case that leader Jackson Lamb feels is “too suspicious.”
After an ex-service agent dies with a mysterious note on his phone, “cicada,” a nickname for Russian sleeper agents embedded in British society, the group is back in action to unveil Cold War era secrets and prevent catastrophe.
As the team begins to uncover the threat posed by the activation of the agents, Lamb warns these secrets “couldn’t have been too well-hidden.”