The 1st episode leaves you hugging the cushions for support as the team of Gibbs, Tony, Ziva, and McGee is broken up, but fret not - the hunt for a mole in NCIS brings them back together again.
It is amazing how this great series just gets better and better - and how the stories are persistently excellent. We know the characters as well as the characters know eachother, and there are still surprises - many in fact.
---- SPOILER ALERT ----
This is the season where Director Vance is introduced, where NCIS' friendly relationship with MOSSAD goes sour, where Gibbs and Tony go to Arizona, (cue horses), where Abby is hijacked by the FBI, where Ducky is accused of war crimes, where Gibbs and McGee go to L.A. (tie in NCIS LA), where Gibbs finishes the boat in his basement (sic!!) and Tony and Ziva go head to head.
I can't wait for the next season. :-)