This episode was so so so freakin' amazing! I could gush about it like there's no tomorrow. FINALLY we have some story arc drama again! Sam's memories and how Dean comes to the cold realization that he's been fighting all this time for a family that never really existed? PERFECT! JUST PERFECT!

The fall-out between the boys is even better than I had anticipated. I'd actually make a whole entry just about that but I have no idea how to put my thoughts into coherency.