Covert Affairs Season 3 Episode 10 (09/18/12)
Annie decides to head to Russia to find a man who might lead her to Lena. Once in Moscow, she befriends this man Dmitri and gets him to help her. After they find another person who tells them where Lena has been hiding, Annie sets up a plan to ambush her.
Lena is not where she was supposed to be, because Dmitri was working with her the entire time, so Annie's ambush falls apart. Now the Russians are after her, so Annie has to come up with a new plan all on her own. She pulls it off, finds Lena alone, and kills her.