A group of young adults are running, terrified, through a forest at night. One of them is caught by an unidentified creature, dragged back into the underbrush and then eaten alive while the others watch. Then, we go to events that led up to this. A group of friends driving to these woods and find out that their hiking destination is closed. So they take a different route. That night they encounter the creature, which is vicious. It looks like something not from this planet. They run and make their way to an old house in the middle of the forest. There's an older couple already in the house, who explain that they were chased as well, along with another guy, who is not the most optimistic character.
Basically, this is the "Night of the Living Dead" scenario done for the zillionth time, only with a weird monster (or two) instead of zombies. It's worth checking out only if you're desperate for a monster movie you haven't seen.