When a death of a Marine leads the NCIS team to a government think-tank filled with child prodigies, the team has to protect a 12-year-old child who may be the next target of the killer.
Vance's family is once again put into danger when an assassin from his past returns to threaten their safety, and the team works on helping Vance face his troubled past.
When one of Gibbs' boats is found with two murdered soldiers, Gibbs is forced to investigate the involvement of his mentor Mike Franks, and prevent a possible international confrontation.