I'm really surprised this film still exists. I'm guessing someone bought the rights a garage sale and put it on DVD.
The plot is that a trio of aliens land their spaceships somewhere in North Carolina, and for some inexplicable reason, go on a killing and rape rampage after finding a trailer load of guns belonging to carnival gunslinging gal. Amazingly, the aliens are not only able to easily master human weapons, but riding horses as well, because apparently there are equestrian events on Zeta Reticuli B.
Well, the gunslinging gal wears a dress with a hemline that barely covers her buttocks, no doubt to detract from the fact she was flat-chested and had misaligned teeth. (A professional actress- NOT!) After an encounter with the aliens where she barely avoids being sexually assaulted, there is a big showdown at the end where she kills all three aliens, who apparently went hunting on Earth with exploding backpacks.
E.T. this ain't, but you suspect that the reason they got backers is that you could get backers for anything with the word alien in the title. In some ways, the plot is like Predator. Except now Predator takes on a new luster compared to this.
Another note- There is a bit of nudity in this film, making it a drive-in classic. (You never see much nudity in today's films, thanks to the prudes at the MPAA.) I think it shows we've gotten more reserved on that since the 1980's, not less.