Pulse 3 begins by letting the viewer in on how dependant the world has become on technology, specifically that of electronic technology, and how it reaches across the world. Here we see Adam (Rider Strong - TV's Boy Meets World, Cabin Fever) in his completely wired home interacting with his international girlfriend through the use of multiple web cams and monitors positioned throughout the home. The two essentially are "together" while separated by thousands of miles. Yet this ill-fated story takes its turn as the girlfriend falls prey to the trapped souls living in the electricity and apparently kills herself while Adam watches.
Fast-forward to seven years later, and we find a rebellious teen (Brittany Finamore - Pulse 2: Afterlife) living in an almost post-apocalyptic world - a world without electricity - wanting to find out who is sending her text messages on the laptop that she found. Little does she know that an evil lies within, and she will be taken on a journey to the source and will have to figure out a way to destroy the spirits that are invading the world.
Unfortunately, Pulse 3's premise can't make up for a bad story and a slue of bad acting. In addition, a large portion of the movie was obviously shot against a blue- or green-screen, and the lighting and compositing were quite sub-par. In any event, these things all distracted from the story, making for an unpleasant viewing experience. It also appears that the original film possibly had a wider aspect ratio than the DVD version, noted by the cropping of screen text that shouldn't have been.
On the plus side, Pulse 3 offered a couple of moments of startling surprise and while the movie wasn't exactly gory, there were a couple of decent effects. With all that said, Pulse 3 may be worth a rental if you are a fan of the series, but most movie-goers will not miss anything in skipping this film.