First, let me start with the positive; There is some production and budget here. I watched the first episode a while ago and my only positive thought was "how is the writing so bad but there was money for the rest?"
The dialogue is bland and just silly, first brought to my attention when someone kept yelling "grandfather, grandfather..." over and over. Nobody does that and from there the rest was pretty obvious.
The characters try to be believable and relate-able but they seem to just pulled from someone's experience of other shows and not real life. Nerdy kid, troubled sister, the admirable jock, the bad kids, the rich kid...
The characters seem to make decisions that are so, so , so bad that you forget how stupid the overall premise of the show is and stop believing the whole experience.
Worse yet is that this show is really just "the dome". A "mysterious virus" that causes sudden tongue bleeding and bad acting seconds before death causes a town to become isolated and quarantined. The only difference between this show and the dome is that the characters ages are restricted, that and the role of the dome is being played by the military.
What makes this show even worse is that there seems to be a series of stupid shows out now that revolve around small towns and something mysterious happening; Wayward pines, salem, bates motel, sleepy hollow, the dome, haven and more. If you restrict the location and characters in a show you have to elevate the sub-plots to ridiculously unbelievable levels. These shows are becoming predictable and trying to out-stupid each other it seems while adding slight variances.