he third season of the police procedural drama NCIS was originally broadcast between September 20, 2005 and May 16, 2006, the third season opens in the aftermath of "Twilight", with the entire team in shock and Gibbs on a vendetta to seek revenge for Kate's murder. Matters are complicated by the intervention of Gibbs' former lover and new NCIS Director Jenny Shepard, and Mossad Officer Ziva David.

Overview from themoviedb.org