For Eric, Tasha, John, and their friends, a hiking trip to the mountains represents one last chance to relax, free from parents and teachers, before high school begins. But something goes terribly wrong when, as a group, they all suddenly lose consciousness.

The teens awake to a reality that is almost, but not quite, like their own. It's as if a second world overlaps their once familiar surroundings...one in which all electronic devices are dead and the usual sounds of wildlife are completely gone.

Then they come-creatures that leave the group with no doubt that their world has...