Officer Ziva David is a Mossad agent from Israel sent to Морская полиция - Спецотдел following the murder of Special Agent Caitlin Todd by a rogue Mossad operative named Ari Haswari. She was Ari's control officer and half-sister; they shared the same father, who was the Deputy Director of Mossad (he has since been promoted to Director). During the episode "Kill Ari (Part 2)", Морская полиция - Спецотдел Special Agent Gibbs is cornered by Ari, but then Ziva emerges and kills Ari. After Ari's death, she asked to be assigned as a liaison for Mossad at NCIS, where she subsequently joined Special Agent Leroy Jethro Gibbs' team, even though...