You may be watching a YA show if :
A teacher supervising a field exercise that he assigned, has 90% of his students die and then is found not liable *for any reason whatsoever*. If God himself came down from heaven and whacked the kids, that teacher is still getting crucified, probably literally.
Disregarding eye-witness testimony because.. 'uh ? reasons I guess ?' is one thing, but that whole scenario is less plausible than the ghosts.
Other than that, the show is kinda fun, and has some charm to it.