This was overall, a good episode, not great, but good. It could have been a great story with more time, but unfortunately every episode is just about twenty minutes long, anyway, here we were able to watch, how limited can people be, in a tough situation, like the underground people were, specially their leader, and how faith can beat all the odds, being that the case of Kazrina, the Russian girl that befriends with Jessie in the underground town.
I found a little annoying that Jessie was an I-know-a-lot-of-stuff-girl, but that wasn't really a very important aspect. This was simply a good micro-study of human nature. Watch it.