As a brief introduction, I can't help but say that from a speculative point of view I've dissected this episode in every single possible way, assuming that Dean's actions influenced the past and then assuming that - even without his interference - things would have turned out the way they did; I concentrated on the details of every possible scenario (why didn't John recognized Dean? And why didn't Azazel either?), and I've come to my personal conclusions, which I'll explain at the end of this review.
The most important thing to say about perhaps the most mythology-intensive episode ever is that it is simply gorgeous. Although I missed Sammy, I can understand why - from a storytelling perspective - it was better if Dean went on this trip down memory lane alone, since the whole episode, although focused on Dean and his emotions, in the end is about the road down which Sam is headed. The script by Jeremy Carver - so full of little details, pop-culture nods at fashion and music and cinema back in the '70s, puns and wisecracks on time-traveling cliches - is simply astounding and the direction by the great Steve Boyum - a master in making bright, colorful environments look like ominous places where very bad things happened -, already oozing atmosphere from every frame, is enriched by the most beautiful orchestration ever heard on Supernatural, which rewrites Azazel theme with a stunning complexity and with new, foreboding textures. And let me say that Jensen Ackles performance in this episode is absolutely amazing! The scenes between him and Samuel Campbell - Mitch Pileggi! A legend! - are simply awesome, and the two of them have such a chemistry that I would have thought that they were best pals. They are incredible actors and I was glad that Mitch Pileggi went to portray the patriarch of Dean and Sam's family. A spectacular choice.
As for my interpretation of the mythology: it made awesomely sense that Dean was actually sent back in time by Castiel, because thus the writers achieved to explain: 1. Why Azazel killed all Mary's old acquaintances (he was sure that Mary didn't know about Dean and Sam, but he couldn't know if Dean told anyone about Azazel's plan), 2. Why Azazel was betting on Sam (having met his brother sent back in time by Angels, he had to know that Sam was the one) and 3. Why Azazel pursued Mary with such a stubborness, while he didn't seem to bother much about the other Special Children's family. This interpretation though leads to some unanswered questions: A. When Castiel brought Dean back in the present, what happened to the Colt? In Season One, we see that Daniel Elkins has it, but how did he regained it? B. Why John didn't recognized Dean from his past? I can assume that Azazel erased his memory somehow when he brought him back, or that his memory had simply blurred out the last couple of days.
Anyway, these are details and the final sentence is that this episode is a masterpiece.moreless





