This was probably one of the more somber and bittersweet episodes of the series. However, I wonder if anyone watching would have considered it a bit out of place given the current volume and that it felt like filler; watching, I kept thinking that, given this was a story about the origin of the Company whether or not it was originally intended for Season 2, before the writer's strike interfered. Nevertheless, this was certainly a much more character focused episode, specifically dealing with the Petrelli clan, addressing the past and possibly setting things up for the future after this season comes to a close.
Of course, Angela Petrelli got much of the focus, and I'm impressed with the fact that, this volume, has actually made someone fans regarded as a duplicitious villainess understand and even sympathize with her actions and why she made the decisions she did, and that now she's seeking redemption for past sins--a big theme for tonights episode. Not to mention uncovering the past, both litterally in the sense of the digging up the mass graves, and figuratively, especially with Mohindir wanting to know the nature of his father's involvement.
I also liked that there was a mysterious quality given to her sister, Alice, even when she was little. Alice's weather controlling powers, much like Alice in Wonderland book she carried, had almost surreal quality about them, especially in the flashback when she made it snow, and in the present during the windstorm. And when we see her as an old woman, you can't help but think that she's something out of a fairy tale. Comic book fans know, considering her powers are just like Storm's, that Alice can "fly" due to controlling the air currents around her, but in this case, the fact that we don't actually see it and she seems to literaly vanish gives her an unreal, ghostly quality. In fact, one could say that this episode was very much like a ghost story in a way. What better place for a haunting than an abandoned internment camp in the middle of a desert?
Another thing was seeing connections being made to prior episodes, especially the revealation why Angela was shoplifting all the way back practically from the first episode. That was something I had all but forgotten until this episode brought it up. Likewise, seeing the younger Charles Deveraux and finally seeing his power (essentially it's a teleptahy on the level of Professor X, another Charles), that he seemed a lot more like Angela would eventually become. It makes you realize that, over the years, he may have opposed the Company's plan to let New York explode out of a sense of guilt over the founding members belief of doing "whatever it took" to keep the existence of those with abilities a secret. Also, the fact that the last scene shows Sylar impersonating Nathan is definitely an echo from the first season in which a future version of Sylar impersonated Nathan as President.
It may not have been the most action packed episode, but definitely a good one.