A group of troopers take refuge in an abandoned outpost after fighting alien bugs, failing to realize that more danger lays in wait.

Martin Brundle, born of the human/fly, is adopted by his father's place of employment (Bartok Inc.) while the employees simply wait for his mutant chromosomes to come out of their dormant state.

American soldiers, led by The Sarge, are stuck behind Nazi enemy lines. As they make their way across the Italian countryside, they come across an alien spaceship that has crash-landed in the woods. The alien pilot is dead, but one of the ship's passengers is on the loose. As the GIs hunt down the alien by splitting into smaller groups...

Happy go-lucky teen Billy Duncan discovers an otherworldly laser gun in the southern California desert, making him the target of a pair of aliens who had recently executed its previous owner.

On March 13th, 1997 one of the largest UFO sightings ever recorded took place across the southwestern United States...