You've seen this movie before, this doesn't really do anything new that those haven't done. It's well acted, tightly and competently written, and rather predictable. They try to throw a wrench at the end, but eh, I've seen enough of these types of movies before. The "sweater unraveling movie".
You start out with a loose thread, and the initial pull on it; "No Gas at the Gas Station, since they're in a super remote area, and no gas for the next 100 Miles." Then more and more people come to pull on that loose thread speeding up the destruction of that sweater, 'til it's a pile of yarn. There's your movie.
Its strength is in the acting, and doing CRISP, CLEAN, BELIEVABLE DIALOG and ACTIONS. No one really behaves in a way that doesn't make sense, all actions taken in this movie makes sense and the results of those choices also makes sense. It's a tight and clean script. Which also what makes it mediocre. It's a little too by the books and safe. They realize that by the end and TRY, but fail, TRY to throw a slight curve ball, but you as a wise audience member calls it from a mile away.
You watch this once, and you're good. You won't feel like you were robbed of your time, but ONCE is more than enough. There aren't clever clues foreshadowing the next move in the series of events, hidden in the scenery. It bears everything out in the open.
