A critic of the NCIS has published (on his own website) many negative comments about the NCIS, complaining about an alleged cover-up of the death of a Naval officer; he falls to his death; Gibbs and company investigate concurrently with the Metro PD; friction promptly heats up between the gang and the Metro detective in charge. Gibbs gets an exhumation; when Ducky and Abby open the casket, they find no body but steel weights. Tony and McGee check out a car, but they run into trouble. Ziva suggests a theory, McGee finds evidence, then he and Tony find the body. McGee experiences a moment of illumination, then he and Tony finish finding the pieces and putting them together. Ziva asks Gibbs to sign a form so that she can become a special agent of the NCIS; he tells her that she'll need to resign from the Mossad; she says that she's already done so, in an e-mail note to her father; Gibbs picks up a pen and then pauses.