Watch Ncis S04e (23) -

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In this episode, Special Agent Leroy Jethro Gibbs is temporarily serving as the acting director while Director Jenny Shepard is away on a junket in Europe. Despite his administrative responsibilities, Gibbs chooses to ignore the paperwork to lead an investigation when a murder victim is found in the back of a taxi headed directly to NCIS headquarters. As the team unravels the mystery behind the victim, Jenny Shepard simultaneously discovers a startling secret about her own past while abroad.