Gibbs reunites with a former colleague when the murder of a congressman in New Orleans prompts a joint case between the field offices and the FBI.
The NCIS team enters the world of rock ‘n roll after a bomb explodes during the rehearsal for a military charity concert.
When DiNozzo confronts a man impersonating a Navy officer, guns are drawn and the perpetrator is left dead. The subsequent investigation uncovers that the only eyewitness is DiNozzo's father, who is in town to disclose a secret to his son.moreless
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.moreless
The murder of a port authority officer reveals Parsa's possible whereabouts, as the team continues their tireless hunt. Meanwhile, Bishop reveals her past association with the elusive terrorist.
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. Meanwhile, an emotionally shaken McGee struggles with the ramifications of the incident.moreless
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.moreless
After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Meanwhile, Abby and Jimmy partner with the Naval Medical Research Center to determine the strain of illness, all in hopes of delivering a cure before the holidays. Also, Vance struggles with forgiveness as his estranged father-in-law makes a surprise visit to his home.moreless
Complications arise when the NCIS team discovers a link between a murder victim and the boyfriend of Gibbs' ex-wife.
When it's discovered the Secretary of the Navy was bugged during a confidential briefing, the NCIS team must work with NSA Analyst Ellie Bishop to help determine who is responsible.
Despite their wounds, Sonya and Marco continue to pursue David Tate. Daniel's attempts at redemption may have come too late and Charlotte shows just how far she's willing to go to protect what is hers.moreless
An unexpected source provides the necessary funds to meet the ransom demands but nobody is prepared for the ransom drop's outcome. After Charlotte reluctantly bends to the will of her late husband's "business associate," she learns what she did in private is no longer a secret.moreless
Serena loves her new job in Hollywood, but makes a mistake trying to impress her boss. Chuck and Nate arrive in LA as their last stop of their Lost Summer trip, joining Serena at a glamorous party, where Nate meets a sexy older woman. Blair and Louis return from Monaco and begin planning their royal wedding, but when Louis refuse to support Blair's decisions against his family, their relation is at risk. A magazine is planning to run an excerpt of Dan's book until an unlikely ally helps him.moreless