This episode acts as a reflection of the season in a way. The first half didn't really grab me all that much. There were some nice character scenes here and there, but I hit the 25 minute mark and it didn't really feel like anything had been accomplished. Once things start to happen, however, it becomes a lot more engaging.
There are a lot of reunions in this episode. Big Jim and Julia reunite, the Rennies reunite, Junior has a sort of reunion with Angie. You could have easily called this episode "reunion". I was a bit perplexed by Big Jim's seething tone when he first sees Pauline, but you could understand why he'd be a bit miffed. To his credit, he does somewhat soften up as he realizes that his family can be together again.
Oh, and of course, there's the reunion of Barbie and his long lost sister...Melanie. I'm not sure about this. I wasn't too crazy about them meeting when he was a kid, but putting the sibling idea out right after that seems like it's a bit much. I guess it explains why she was brought over in the first place, but it wasn't the show's finest moment.
On the opposite end of the quality scale, I really liked the confrontation between Junior and Sam. Junior's usually on the losing end of fights so it was good to see him dish out some punishment. It was tense and gave the character a good mini-arc.
The focus of the episode turns to how to evacuate the town. It was the thought that occurred to me earlier and they come to the same conclusion. Alas, it's not that simple as the repercussions are farther reaching than they seem. Barbie and Jim think it would work out if they deliver the egg, but Melanie is convinced that it's a bad plan.
I'm not sure where they got the idea that the dome was brought down to protect them. If that is the case, it's been doing a terrible job of it. It's especially odd as it was explicitly said last season that protecting the egg was the priority, though we still don't know from what.
While it isn't a major plot point, it is mentioned that the weather is starting to change in ways that it shouldn't. The dome is apparently changing the duration of the seasons so that Chester's Mill moves into Fall when it's still summer. It could be some meta-comment on the season's airing date, but either way, Winter is coming.
Actually judging by the preview for next week's episode, it seems like this was just laying the groundwork for that plot so that it doesn't come completely out of nowhere.
The episode's final act is filled with wham moments. Each would have worked on their own, but put together it just makes the events that much heavier. Not only is the egg lost, but Phil dies and shows that the way out of the dome is now closed.
The last few episodes should be tense as not only will the people of Chester's Mill be ticked off at being given false hope of escape, but the Dome itself will likely not take kindly to the idea of the egg being in the hands of nefarious parties.