This movie is a low-budget take on the "War Of The Worlds".
Not much to do with the original plot, except to use the idea of "earth germs" as a weapon. A great bad Southern accent (or Suth-uhn ak-cih-unt), high-tech jet aircraft (which can fly through outer space better than the space shuttle) alongside ragged clothing and chronic food and fuel shortages, a child actor who is a better actor than the male lead, and some techno-babble.