A rich landowner and a rugged, alcoholic outdoorsman open up a campground to raise money for surrounding projects (shopping malls and such). But in the maiden weekend of camping, the campers face a bear, nasty storms and a hermit caveman who is none too fond of his peace being ruined.
The film has some standard 80s staples: punk kids, a few token blacks (though, unlike many horror films, not killed off right away), a campground (see "Friday the 13th" or "Sleepaway Camp"), metal music, topless girls, etc. If you like 80s horror (and I do) you will find some familiar themes here and that's a good thing, in my opinion. But even a good set-up doesn't always make for the best follow-through.
The death scenes are really weak. And the problem with that is, I am not sure if this movie was trying to be a horror film or a comedy. It's not scary enough to really be a true horror film, but not funny enough to be a comedy. What it ends up being is a bland mix of both. The same goes for the caveman: he is in no way threatening, but also not really funny. So what happens? He ends up just being bland and dumb, being more silly than anything. Not to mention the makeup department did a horrible job, and his background story makes no sense. (I won't give it away, but let's just say he comes across a lot more primitive than you'd expect.)
Somebody, somewhere loves this film and probably watches it and screens it for friends. I am not that guy. I have no doubt I will some day watch it again, but I can't say it will be soon and I can't imagine why I would unless there was some sort of money or alcohol involved. If you need to see one more 80s film where campers get hacked up, this is your film. Otherwise, just listen to Weird Al's "Nature Trail to Hell"... it's actually less cheesy and more graphic.