Should you see it? No.
Teenagers (without cell phones) get lost doing a drug run in Mexico (which looks like Canada). Their car and stash disappear, they get chased into a mine shaft and then things get extraterrestrial. There's horror in each character having to confront their inner demons and there's one decent childhood flashback. There's a monsterous alien that's never clearly seen - in fact, the whole film is so underlit that nothing's clearly seen - and the film fails as both horror and science fiction.