During the annual Contraband Days pirate festival, the NCIS team investigates the murder of a Navy captain who was searching for a valuable 200-year-old marble and gold fleur-de-lis.

Percy and Lasalle go undercover at a high-stakes, underground poker game after the organizer targets players with access to a naval research laboratory. Also, Laurel Pride visits her dad during spring break to discuss options after her upcoming graduation.