Two-Faced

The body of a seaman is found wrapped in plastic and doused with a hospital-grade cleanser, hallmarks of a serial killer known as the "Port-to-Port" killer who kills service personnel when they make landfall. Vance creates a task force to catch the killer, appointing Barrett as lead investigator as she had been tracking the killer since he struck in Rota, Spain. Tensions arise within the MCRT when Gibbs suspects Barret and DiNozzo are sleeping together, compromising the loyalties of the team. Ziva discovers her boyfriend Ray is a secret CIA liaison to NCIS and questions the entire nature of their relationship when she catches him in a lie. After several dead ends and the discovery of another victim (bringing the known total to five), the episode ends with Ziva and DiNozzo in a bar, discovering a human eyeball floating in a glass of gin and tonic sent by an unidentified patron.