NCIS - Season 11 (DVD)

Begins with an explosion at a black-tie affair in Washington, D.C., that kills Secretary of the Navy Clayton Jarvis (Matt Craven) and critically injures Homeland Senior Division chief Morrow (Alan Dale). The team suspect the bombing is linked to the murder of Navy SEAL Lt. McBride, whose severed head was discovered in the Season 10 finale. Gibbs (Mark Harmon) goes to Iran to investigate and is aided by an unlikely ally-Department of Defense investigator Richard Parsons (Colin Hanks). Meanwhile, badge-less DiNozzo (Michael Weatherly) and McGee (Sean Murray) probe the case as civilians, despite the crime's dangerous ties to each of them. Later, Tony travels to Israel to search for Ziva David (Cote de Pablo), while the team hunts terrorist Benham Parsa (Karan Oberoi). Also, Gibbs helps his father (Ralph Waite) track down a World War II buddy who saved his life, and he goes to New Orleans to help former colleague Dwayne Pride (Scott Bakula) investigate the murder of a congressman, who was a former NCIS agent, and determine whether the murder was politically motivated or linked to the victim's arrest of a serial killer who targeted military personnel and public servants.