In a world ravaged by an alien invasion, the final remnants of mankind battle a horde of incredible monsters, spacemen, and a devastating fleet of alien warships bent on wiping out the last vestiges of humanity.

A scientist creates a toxic cocktail that is accidentally unleashed into the local population and a nearby police "body farm" - creating a small army of flesh-eating zombies - and only one creature of legend, a killer in his own right, can stop the growing hordes of the undead and save humanity.