Series 6, Episode 20
The Wolves of War.
So, here we are, at the final episode.
(Until the reboot.)
I've watched this show since its first series, and started reviewing it in its fourth, just after it hit its peak and started going very rapidly downhill -- the series has certainly had its highs and lows, with an entertaining first series, a somewhat lackluster second series, a stellar third series, and then varying shades of 'sigh' as it dragged into its fourth, fifth, and sixth outings. Still, while I can't say I felt all that much when the curtains closed on this final episode, I can say that I will at least somewhat miss this show.
That said: God, this wasn't a great final episode. In fairness, endings are difficult -- they're always difficult, and they only become more difficult if, like Teen Wolf, you're aiming for an overall positive tone. Tragedies are easy to end: They stop at the point where things have gotten as worse as they possibly can, as many people have died as are going to, and the futility of it all has been hammered into the audience. More light-hearted fares require a rather more deft touch.