The Americans attempt to remove Jesper Berg from their embassy, while Hans Martin frantically searches for Russian ambassador Irina Sidorova.
The team discovers a sleeper agent with connections in the US military. Faced with a foe who not only appears to be a traitor, but a trained spy with access…
MI5 have to intercept a Russian arms dealer who plans to pass blueprints for a nuclear device to Iran. Adam and Ana decide to bring their relationship to a close.
