Enemies Domestic

Gibbs arrives at the scene to find Hadar dead, Vance critically injured, and Eli missing. Eventually, the team tracks down Eli, who had gone into hiding to elude his assassins. They then deduce that the man who planted the bomb is an insider at NCIS. During the episode, Gibbs revisits Operation Trident, Vance's first job with NIS and when he met Eli David. Gibbs originally comes to the conclusion that Eli tried to have Vance killed during the op by tipping off his primary target: a Soviet operative called the Russian. When Eli is found, it is revealed that Vance and Eli had actually worked together during the op to stop the Russian and his hit team which was the career builder for Vance. The insider in NCIS was the same person who mounted the operation in Amsterdam and whose plan was foiled by Vance and Eli. It is revealed that the insider is Riley McAllister, former head of the San Diego field office, and that he mounted the operation so that his area of expertise, Russia, would come back into a post-Cold War play which would have allowed him to become Director. He had hired the Russian, the same man that he later sent Gibbs to assassinate in Paris along with Jenny Shepard, to kill Vance and he had set up the bomb at the safe house to have revenge on Vance and Eli. He then tries to kill Vance in his hospital room but Vance stabs him with a knife that Gibbs had given him to defend himself. Before he returns to Israel, Eli makes peace with Ziva.