NCIS

An explosion at a D.C. event that results in a casualty connected to the agency changes Parsons' perspective on Gibbs and the NCIS team. Guest stars include Colin Hanks as Department of Defense IG Investigator Richard Parsons and Joe Spano as Senior FBI Agent T.C. Fornell.

Determined to locate Ziva, Tony chases leads in Israel in search of her current whereabouts. Joe Spano guest stars as Senior FBI Agent T.C. Fornell.

The NCIS team must rely on Twitter for a case involving a missing Navy Lieutenant. Roma Maffia guest stars.

Gibbs and McGee travel to Afghanistan when a murder case leads them to an Afghan women's shelter Mike Frank's secretly supported for years.

DiNozzo returns to his Baltimore Police Department days when he sees a felony suspect from a 15-year-old case at the NCIS crime scene of a murdered Petty Officer. Margo Harshman guest stars.

NCIS partners with the Coast Guard Investigative Service (CGIS) to investigate a suspicious explosion on board an oil rig. Diane Neal guest stars.

After Gibbs leaves mid-case to help his father reconnect with a former war pilot, Tony and McGee argue over who should run lead on the team's investigation into the murder of a Marine Sergeant. Ralph Waite guest stars.

The NCIS team is forced to re-examine a hit-and-run murder case when a former FBI agent turned lawyer confides in Gibbs that her client's confidential alibi is solid.

After discovering the Secretary of the Navy was bugged during a confidential briefing, NSA Analyst Eleanor "Ellie" Bishop, who predicted the security breach in exact detail two years ago, partners with the NCIS team on the case. Emily Wickersham joins the cast.

Complications arise when the NCIS team discovers a link between a murder victim and the current boyfriend of Gibbs and Agent Fornell's ex-wife. Joe Spano and Melinda McGraw guest star.

After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Meredith Eaton and Ben Vereen guest star.

When a stolen drone is linked to the elusive terrorist Parsa, the NCIS team partners with the Department of Defense, including Gibbs' former girlfriend Hollis Mann, to track down the device before it is used for a large scale attack. Susanna Thompson guest stars.

In an effort to find the terrorist Parsa, Gibbs and the NCIS team track down one of his cohorts using evidence from the drone attack.

The murder of a port authority officer reveals Parsa's possible whereabouts, as the team continues their tireless hunt.

After uncovering faulty bulletproof vests in a truck filled with stolen U.S.M.C. merchandise, the NCIS team attempts to locate both the source and any vests that had been shipped to military personnel overseas.

When DiNozzo confronts a man impersonating a Navy officer, guns are drawn and the perpetrator is left dead. Robert Wagner guest stars.

After a bomb detonates in the dressing room at a military charity concert, the NCIS team must determine if the target was a washed-up '80s rocker or if the bomb was part of a larger scheme. Keith Carradine guest stars.

When the body of Congressman Dan McLane, a former NCIS agent, washes ashore in New Orleans, Gibbs reunites with his former colleague, NCIS Special Agent Dwayne Cassius Pride, in a joint case between the two field offices and the FBI. Scott Bakula, Lucas Black, Zoe McLellan, and CCH Pounder guest star.

Gibbs and Special Agent Pride chase leads in New Orleans after evidence points to a copycat of the infamous Privileged Killer. Scott Bakula, Lucas Black, Zoe McLellan, and CCH Pounder guest star.

After returning to her job at the Department of Defense, McGee's girlfriend Delilah finds a break in a controversial case, prompting her to turn to the NCIS team for help. Margo Harshman guest stars.

After a Navy officer is found dead on a rural road, the NCIS team must ascertain if the murder was the result of a bar fight or because he knew too much about an attack on a fellow female officer.

When a Marine photographer disappears prior to providing his testimony in an Army court-martial hearing, the NCIS team investigates both the murder he witnessed as well as his current piece on military veterans who are homeless in the D.C. area.

Director Vance gives DiNozzo a special assignment to bring home an Admiral's daughter from Marseilles, France, but he must turn to his NCIS team for help after he enters a controversial crime scene.

The NCIS team investigates whether a fire on a U.S. Navy ship that served as a secret detention site for indicted terrorists was accidental or an intentional diversion for an escape. Episode honors the memory of recurring guest star Ralph Waite.