Synopsis: Still not completely recovered from the serious injuries incurred during the near-apocalyptic Season Three finale of NCIS, Leroy Jethro Gibbs (Mark Harmon) has at the outset of Season Four retired from his position as head of the Naval Criminal Investigative Service comprised of Ziva David (Cote de Pablo), Tony DiNozzo (Michael Weatherly), Abby Sciuto (Pauley Perrette), Tim McGee (Sean Murray) and Dr. Donald "Ducky" Mallard (David McCallum). Now the team is under the command of hotheaded DiNozzo--but ... Full Synopsis
