Lets recap what we know so far - Cassie has embraced her dark side, Jake is back and the witch hunters are resilient than ever...add to the mix daddy Blackwell who is back from the dead after so long. He says he just wants to reconnect with his daughter and be in her life but something fishy is going on. He makes them believe that Adam and Cassie can't be together (the only good thing he did mind you! I still think Jake and Cassie are better suited together) and wants to reunite the six crystals that had been divided among the six witch families of Chance Harbor. Around this is when the slithery snake demons make a re-entry (gross!)...so the witch hunter Eben gets those uber-gross things in him to get some control over the circle and destroy them just like the did when their parents in the boatyard fire 16 years ago.
The naive circle with nothing better to do follow all of what Blackwell tells them to do, i.e., get all the crystals, form back the crystal skull..an object of great power (dark magic to be precise)...which will them destroy the witch hunters. Oh and did I forget to mention that Nick is still alive...he was the traitor witch who lent their power to Eben who in turn had used it to gain access to those demons. Back to the circle - they get all the crystals, form the skull back, which in turn unbinds the circle and they get their individual powers back. Oh also Diana is the other Blackwell girl (pretty shocking huh!).
The final showdown, Faye needs to be saved from the witch hunters, the parents come clean and reshuffle their priorities to the one which has got "save the children" rather than "get our powers back". Charles Meade takes all the demons in him(bad move daddy Meade!), and the real reason behind the reformation of the crystal skull is revealed. Blackwell wanted to create the ultimate circle of witch all of them being Blackwell's own children and kill all the other witches. Well suffice it to say he doesn't succeed in the killing department. At the nick of time, Cassie awakens Diana's dark magic and they are able to revert the skull's magic back unto Blackwell, who as a result burn from the inside and dies. So at the end the good people win, the circle agrees to hide the skull somewhere safe, Diana decides to leave Chance Harbor and go with Grant(who by the way has a sexy Australian accent), both Diana and Cassie get the dark magic tattoo on their hands and the other four Blackwell children arrive in Chance Harbor. Sadly, we won't know what happens in that area since The CW has decided not to renew the series for a second season...
