The bears frightened the family away from the Colorado Mountains, but bears can seem benign when true evil shows itself. A retired railroad engineer taking his last train ride brings the horror down the tracks where he shares it with the Hoffman family. Noah Woods has no concern for the Hoffmans or any other passengers, this being his final ride, but the Hoffmans are caught between Woods and something unspeakable that doesn't care about the Hoffmans either. They don't know how but they have to try to stop this horror ride. Something large is trying to break into the carriage.
