Sleepaway Camp 3: Teenage Wasteland is a 1989 film written by Fritz Gordon and directed by Michael A. Simpson. It stars Pamela Springsteen, Tracy Griffith, Michael J. Pollard, Mark Oliver, and Haynes Brooke. It is part of the Sleepaway Camp series of films.
Image from NTSC disc
I am pretty sure that DVDFab will burn this without a country code. If anyone knows for sure, please put it in the comments.
Widescreen presentation, enhanced for 16 x 9 tv's