But what they didn't count on was the bus crashing on a remote, deserted dirt road in the woods.
And what they couldn't possibly have anticipated were the hideous horrors that lurked in those woods... mutated once-human monsters with a hunger for fresh meat...
And fresh souls...
Just days before their graduation, twelve high school seniors embark on a field trip to the bustling city of Chicago... but they never arrive. The bus ends up crashing on an old, deserted road in the bowels of a lush forest. Some students die in the crash. Others are injured. Few remain unscathed. How they managed to veer so far off the map is a mystery. And, calling for help proves useless, as nobody can receive a phone signal.
Since little daylight remains, and a fierce storm's brewing, they come to the conclusion that they must spend the night in this unfamiliar territory.
Before dawn, however, everyone is awakened by a girl's ferocious scream. It turns out to be the scream one of their own, who's gone missing. They also find proof of what roams these woods—deformed humanoids with the brute power of wild animals. The only difference is, these savages are smart, cunning and purposeful. Their goal—to devour the brains of everyone from the Number 13 bus in order to lengthen life and accumulate powers. It's up to Will Berilla, a confused but precocious teenager, to wage war against the evil that's stalking them, save his friends, and find his way back home.