After an NCIS agent is killed during a security detail for the Vice Chief of Naval Operations, the team must determine if this was an assassination attempt or if someone is targeting one of their own. Meanwhile, Agent Brody is placed under investigation and her mysterious past is reevaluated.

After a Navy recruiter is the target of a lethal hit and run, the NCIS team investigates whether the murder was tied to her career or her role as a foster mother to two brothers. Also, Lasalle grows increasingly concerned for his brother's welfare after welcoming him into his home.