Claire has overdone it in Halloweens past and the neighbours definitely don't share her enthusiasm, so this year she's being forced to tone it down and keep it 'kid-friendly'.
Claire takes a first-class seat on a flight, leaving Phil in coach. Elsewhere, Gloria makes Jay teach Manny how to defend himself, and Mitch, Cam and their friends throw Sal a belated baby shower.
While looking into the deaths of a government witness and an undercover cop, Goren and Eames reveal a family feud within the Mafia.
After a suicide bomber tries to assassinate the Belgravian Defense minister, the team must protect his daughter, who is studying in the US; Gibbs looks into the death of a Marine who was killed in the bombing.
The death of a robotics engineer may be linked to his groundbreaking teleportation research. Detective Bell is blocked from a class he needs to attend in order to complete his degree and join the US Marshall Service.