It looks interesting but I'd consider this to be an awful trailer because I really don't feel I need to watch it now. I know the father dies, I know the brother has been taken away by the baddies, I know she meets some love interest guy who turns out to be a militia member (likely reformed), I know she does reach her uncle in Chicago, I know there's some initial contrived conflict between them that is then resolved, I know the necklace turns out to be a key to a working computer and I know that there's some mysterious guy on the other end of a live modem line.
Talk about showing too much... quite aside from the fact that it looks like Hunger Games, Jericho and Jeremiah all got drunk together.
Imagination will often carry us to worlds that never were. But without it we go nowhere. - Carl Sagan