Now the main story arch for the Winchesters should have stopped at Season 5 (awaiting backlash) and this is from someone who LOVES the show to bits and who will continue to watch even with the bloody angels. however Season 10 has brought the show back to the same storytelling as the earlier seasons, back to fighting demons back to the humor and back to a decent story line.
We see the return of show favorite Charlie who follows Dorothy (Wizard of Oz Dorothy) the the merry old land of Oz turning into a pretty cool bad ass along the way. The Mark of Kane is still on Dean's arm, which is pretty much the story arch for the series, and the bromance between Crowley and Dean goes through a rough patch.
We are also introduced to a new villain in the form of Rowena, a witch who just happens to be the mother of Crowley! and the only person who may know a way of removing the mark from Dean's arm. We are also taken on a journey with Cas, who is looking to make amends for the family of Jimmy, the man whose body he has taken (who as we all know died a few seasons ago). We find Cas trying to bond with Jimmy's daughter Claire who is now a run away teen, angry and looking for her mother.
I like the different routes the show is giving us. I loved the link to The Wizard Of OZ and the even more unexpected like to Frankenstein in the form of the Stein Family which gives the show a wider range of characters to work with in later seasons (at least it wasn't like the Dracula episode of Buffy the Vampire Slayer!). The story line flows so much better than the last few season, which to be honest have felt a little slap dash, but when I got to the final episode of season 10, with all the emotional scenes leading up to it (i'm not going to spoil it for you), I was left with that feeling of "OH MY FUCKING GOD!!" which i have not felt in a show for a long time.
I can't wait till season 11, this was an amazing season and as a whole Supernatural has enough going for another season, however how much more damage can the brothers to the world before there is nothing left to fight for.