In the final episode of the show, while the Russian deal is being closed, Ruth helps her former Section D colleagues break Harry out of CIA custody when Elena Gavrik approaches her with information. She tells Ruth about the attacks on her family, the death of Tariq and the assassin sent to kill her husband, she also says there is a new attack planned on the UK and insists she can only talk to Harry face-to-face. Harry and Ruth interrogate Elena. She reveals that neither Ilya nor Jim Coaver were involved but it was her, that she ordered the attacks and that she had been working for a faction of the KGB since Harry had left her during the Cold War. Her role was to become a plant if Harry had taken her and Sasha to the UK as he had planned to before Coaver stopped him.