Ncis - Season 4 -

Season 4 traded high-octane explosions for deep-seated emotional stakes:

This season introduced Timothy McGee’s career as a novelist (writing as Thom E. Gemcity). It provided much-needed levity, especially when a murder case mirrored his unpublished manuscript in the episode "Cover Story". 3. The Introduction of "The Frog" NCIS - Season 4

A heartbreaking case where a Navy Lieutenant asks NCIS to investigate his own murder while he is still alive. Let me know

What do you think was the of the La Grenouille storyline? Let me know! NCIS - Season 4

A finale that leaves Tony and his girlfriend Jeanne captive and several major secrets finally unraveling.

After Gibbs' return, a major subplot involved the friction between him and Ducky. Ducky was deeply hurt that Gibbs hadn't told him about Shannon and Kelly before his "retirement". Their eventually "making up" in the morgue remains one of the show's most poignant moments.

The premiere, "Shalom," cemented Ziva David as a true member of the family. When she is framed for a crime she didn't commit, the team risks their entire careers to clear her name, finally moving her from "Mossad Liaison" to "One of Us".