Gibbs spots an old suspect from an undercover mission he was on. Meanwhile the team tries to found him since he went again in his undercover persona.
An international terrorist who is notoriously hard to trace makes an appearance in the US. NCIS and other agencies are tasked with tracking the terrorist, leading to dire consequences for one agent and questions about the loyalty of another.moreless
A murder case leads Bishop to Gitmo and forces her to face a harsh reality.
When a naval petty officer is found days after going missing, questions are asked and her personal life is torn to pieces. Torres and Abby don't see eye-to-eye on a gift and McGee struggles to overcome an email issue.moreless
The chase for the fugitive continues. Gibbs team up with Fornell´s partner. As they try to locate the remaining targets on the hit list, the case takes an unexpecting turn.
Gibbs suspects that a 14-year-old who stopped a home invasion is holding back information; Vance and Fornell head to London as part of the case involving the escaped British spy.
The corpse of a UK prison guard is found in a shipping container full of coffins. An a specter from NCIS' past comes back for revenge.
A senator hands DiNozzo a envelope full of money, seemingly at random, and then DiNozzo is reported dead in a car crash (while he's in the office). The team has to find out who has been impersonating Tony and why.moreless
An innocent man is jailed for 16 years due to a problem with a test that Abby had absolute faith in. Helping to solve the riddle is a band of amateur sleuths from a secret society in which Ducky is a part.moreless
The NCIS team investigate when the murder of a petty officer is revealed to match a M.O. that a local serial killer is using and it falls to the team to discover if this is the serial killer's latest victim or if it's a copycat killing while McGee and Delilah must learn to compromise before moving in together while potential tragedy lies in store for Bishopmoreless
After a Marine is found murdered in Quantico hours after calling Gibbs to discuss a possible case, Bishop and McGee go undercover as a married couple to run surveillance on a Marine Lieutenant and his wife.moreless
Gibbs fights for his life after being shot by Luke. Meanwhile, Agent Dinozzo and Johanna travel to Egypt to take down The Calling.
A marine captain is murdered, and the team suspects a known terrorist's brother. Dinozzo is jealous of McGee's being selected by PR.