When the Korean wives of two Marines are murdered, Gibbs and his team are sent in to investigate. Since signs of domestic abuse were evident at the crime scene, they suspect that the killer is one of the women's husbands. The sudden disappearance of Yoon Dawson, a friend of the two victims, makes her husband a suspect in the case. However, the team soon discovers that Yoon is not all she seems, and that she and her two dead friends might have been in America for reasons other than having Marine husbands.