A widowed Marine wife, whose husband was seemingly killed by a Taliban sniper, asks Gibbs’ help to find out the truth. Meanwhile Vance is conducting interviews for a nanny.

NCIS uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

Sydney turns to her sister Nell for help after her high school crush, Andre Martinez, is mixed up in a Russian plot to steal intelligence from the Department of Defense….