Gibbs is angry after Ziva walked away from NCIS, and an angel appears to show him why she left. Gibbs is taken through the course of her life and witnesses her childhood and early years as a Mossad Agent, up to her arrival to NCIS. He even sees moments of her life from after she becomes a part of the NCIS team. Gibbs and Ziva father/daughter. Before Tony finds her in Israel.