I loved this episode so much I want to hug it. There's a lot I'm down with just on general principle - Dean being true to himself, he can't kill the ones he cares about, Cas stepping up to try to be the dad Jack needs, and Sam being torn because he doesn't want to kill Jack but he doesn't see any other way to handle a threat that big - that was all awesome.

But for me, ultimately, it's all about that final gunshot. It's Sam, picking up the gun, realizing that everything they have suffered in their lives, everything he has suffered in his, all the people who have died because of decisions they were forced to make -- all of it was just entertainment for God. That the seemingly endless cycle of being asked to sacrifice the people they loves and being asked to sacrifice themselves is just bad writing. That none of their suffering was due to self-determinism, it was just because Chuck liked watching them suffer and bleed and lose everyone they cared about because it made the show more interesting. You can see it in his eyes, every step of the way.

It's Sam, seeing God hand his brother a gun and ask him to kill their more-or-less adopted son - and in so doing, once again sacrifice himself - and deciding, no more. Sam, seeing his real nemesis in front of him, knowing that if he kills Chuck with the gun, he'll also kill himself, and taking the shot anyway.

Holy hell. I love this episode.