I started watching about season 3, caught up with it on Netflix...
really typical post-apocalyptic story lines...people overcoming whatever wiped everyone out, then it eventually turns to people against people.
I guess this generation's fascination with zombies & vampires is what drives it.......some of the episodes had very strong story lines but the second half of this season has been pretty lame. Hell, everybody knows how it ends...they lives their lives in some fashion, the zombies have turned into gnats, and eventually they'll die and turn into zombies.