Parsons confronts Morrow (about the sidelined investigation), and the latter rebuffs him; moments later a bomb explodes at the site of a formal dinner, thereby killing the SecNav and injuring Morrow and others. Gibbs strides into the office, meets with Vance and McBride's CO, and volunteers for a highly sensitive special operation; Gibbs goes to Iran; Tony makes plans to go to Tel Aviv. Soon Gibbs gets into a gunfight in Tehran and runs into Parsons, who makes a semi-apology; Gibbs and Parsons investigate. Ducky and Palmer deal with an intruder. Before Tony leaves, someone shoots up his pad; Tony chats with Vance; Tony calls McGee, whom Fornell intercepts and takes to a meeting at Tony's place; Vance visits Morrow, who says that Ziva is the next target. Gibbs and Fornell find out who changed McBride's orders; they do business in Arizona; Tony talks with Adam, who tells him about Ziva and her activity. [To be continued.] NCIS是Naval Criminal Investigative Service的缩写,直译过来就是海军罪案调查处。这个隶属五角大楼的特别部门,专门从事与海军以及海军陆战队有关联的任何罪案调查。海军调查处被赋予了特殊的调查权,只要是案情需要,任何人都必须接受质询无论职务和军衔高低。NCIS小组每次都会遇到各式不同的案情,从谋杀、缉毒、谍报活动、到反恐行动、甚至是神秘宗教,无奇不有。