S1, E1: The Skripals and DS Bailey fight to survive, and Tracy and the emergency services try to locate the source of the nerve agent to prevent further casualties.

Starring Anne-Marie Duff, Rafe Spall, MyAnna Buring
Director Saul Dibb
S1, E1: The Skripals and DS Bailey fight to survive, and Tracy and the emergency services try to locate the source of the nerve agent to prevent further casualties.