The premise of "Swan Song"--Gibbs coping with Mike Franks' death--seemed a little implausible to me. I think it's just me, but I found it really odd that Gibbs would just call Mike and Mike would show up like that and then get killed. As for the death itself, I never cared that much about Mike, but the reactions to his death was what really mattered and the actors did a good job with that.
That last scene was really intense--and I'm not kidding--like Breaking Bad or The Shield intense. Now the question is, will more people die in the season finale? Given NCIS's track record, I wouldn't be surprised if EJ and her team die.
Score: 8.9/10