Kill Ari (Part I)

In the aftermath of Kate Todd's brutal murder at the hands of Ari Haswari, the team struggles to come to terms with her death. Still grieving over losing Kate and seeking revenge against Ari, Gibbs clashes with the new NCIS Director Jenny Shepard, who believes that Ari Haswari was not the one responsible for firing the bullet that killed Agent Todd due to the fact that there's no physical evidence or proof of any kind linking him to the crime. Ziva David, Ari's Mossad control officer, sides with the director, and causes problems when she arrives at the office, claiming that Ari is completely innocent. However, Ziva's motives for defending Ari become murky when she communicates with him and does not tell anyone in the NCIS office although Gibbs is aware and orders DiNozzo to tail her. Ari later returns and holding Gerald Jackson hostage yet again, kidnaps Ducky to divert the team's attention away from Ziva as he attempts to force Ducky into a meet.