Strangers awaken in individual holding cells with no memory of how they arrived. They realize if they don't acquire enough online "likes" in a timely manner, they'll die horribly at the hands of a sinister executioner.
A group of soldiers are ordered to hold a bridge during a zombie outbreak, but what lives underneath the bridge, proves to be even more deadly.
When miners blast for gold in the 1870's, they accidentally release ancient creatures known as Tommyknockers. The Town of Deer Creek, Nevada is soon under siege with only a handful of survivors held up in the local saloon.