Michelle Pierce

The team think that two people might be working together to commit a series of murders, taking leads from DVD footage of each crime provided by the families of the victims.

Terrorism shakes the foundations of the Navy and NCIS to such an extent that Gibbs and the team face surprises that may prove devastating.

With their lovers in comas, Susan and Ian go to the country for a weekend; Nora forces her way into Lynette and Tom's life.

When a Navy captain is murdered in his hotel room, the NCIS team must find his pregnant companion and protect her from unknown assailants. Meanwhile, Jimmy brings his future father-in-law to work.

Secrets are revealed when Gibbs' former mother-in-law becomes a key witness in a murder investigation.

While investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly biotoxin. The NCIS team calls on doctor Carol Wilson for help to find the antidote, while Torres tries to distract Jimmy's daughter.