
When the enemy is closer than you think, who do you trust?
A British intelligence officer Kate Henderson races against time to uncover a UK politician's potential ties with the Kremlin, risking her reputation and family, as a murder and election loom.
Season 1 — 5 episodes

Episode 1
An MI6 agent learns that there is a Russian asset in the UK Cabinet.

Episode 2
Kate suspects that her agent is in danger and, defying orders, prepares to rescue her.

Episode 3
Kate's bold rescue mission in Malta backfires and she draws flak from all sides.

Episode 4
The pressure mounts on Kate when the Russians target her family, and Rav follows clues to Geneva.

Episode 5
Kate runs Cyclops in an audacious mission inside Moscow Secret Service HQ to finally trap the MI6 mole.