Annie tells Lena that Simon contacted her, and Annie thinks she can get information from him. Joan assigns Annie to help find an Iranian missile that uses American technology. Annie works with Eyal in Israel to find who made the missile.
Auggie sees a therapist to deal with losing Parker. Annie tries to turn the chief aid for the Yemen Prime Minister is in the country for a heart operation. With promises of security, he agrees. Annie finds out she cannot protect his family.
At Jai's safe house, Annie & Auggie find Jai was investigating Simon. Annie tells Arthur & Joan she has been cultivating Simon and thinks she can turn him. Simon says no, but asks Annie to marry him. Simon & Annie are gunned down by Lena.
After shooting Simon, fatally, Lena escapes being discovered by a delivery man and by Annie, who hallucinates while rushed to hospital for critical surgery. Arthur orders an investigation and tends to Lena's thesis that Annie is a traitor who wasn't properly screened as a recruit. Auggie risks his and a career-bribed polygraph expert's career to conduct his own investigation, while the CIA director officially sanctions Annie's dishonorable discharge in hurry. It leads Auggie to the passport forger, but Lena anticipated that.
Lena escapes to Russia. Against CIA orders, Joan gives Annie permission to find Lena. Annie tracks Lena, who then tries to convert Annie as a counter spy. That fails, and Lena tries to shoot Annie. Annie kills Lena in self defense.