Hmm. I'm getting the idea they werent certain they were getting a third season here. There was a LOT of closure in this ep, even though they left the possibility for ongoing eps in. Compare to last season's cliffhanger.
That said, wow.
We got the return of the Colt, and Colt lore in general. The return of the crossroads. Daddy climbing out of hell to help his sons. The death of a major villain. And one of the COOLEST anti-demon setups I've ever seen. I am so stealing that giant magic circle made via railroad lines.
