Gibbs continues to work with a Marine Captain sufferingfrom PTSD in an investigation to track down a terrorist.
The NCIS team investigates the brutal murder of a Navy Lieutenant who just returned home from the Middle East.
Sutton encourages Ethan to bond with his estranged father, while Emma works to prove his innocence. Rebecca offers Laurel the chance to produce a music demo.
When a prison inmate is murdered, a serial killer claims to have information useful to the case. Frankie readies himself for the detective exam.