When a missing lance corporal is found dead in a vacant house by a real-estate broker giving two potential buyers a tour, the NCIS team discovers that he was buried in the backyard and then exhumed. They also learn about his identity and that he was to be deployed to Iraq, but he never showed up for duty. The investigation leads them to a new clue - he had two fiancées who are aghast at learning that they were both engaged to the same man. Abby runs the DNA samples from the two women to find out if the DNA is a match to the soil found on the dead man's body and later finds out that the team are looking for a third woman who might have been sleeping with the victim.