The NCIS team investigate when the remains of a badly-charred body are discovered in a campfire and the team as well as the entire agency are left stunned and grief-stricken when the remains are identified as being those of an agent well known to Gibbs. As he struggles to come to terms with the revelation, Gibbs starts to suspect that the killing an act of revenge against him while the team discover that the final case that the victim worked on before her murder was the rape of a Petty Officer Second Class and following the revelation in Borderland (episode), Abby tries to talk to Gibbs in the hope of getting him to open up about what happened in Mexico twenty years ago but he refuses, forcing Abby to take drastic measures to get Gibbs to listen to her with the two's professional relations