A former Petty Officer, convicted of murder, escapes from prison and forces F.B.I. Special Agent Fornell to reopen his case in order to find the real culprit whilst claiming his own innocence. Fornell asks for Gibbs' help, who is reinstated as an NCIS agent by Director Shepard. To his former team's disappointment, Gibbs insists that the reinstatement is only temporary. The team soon find discrepancies in the Petty Officer's case and that he may have been framed.