An alien virus that once wiped civilizations out in ancient times through out time has returned overnight by a mysterious thunderstorm infecting all the bats in the area causing them grow into grotesque giant carnivore man-eater monster bats and it's up to humankind to fight for their lives to survive or history will once again repeat it's self as it has thousands of years ago.
As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.
A group of six tourists looking to go off the beaten path, hire an 'extreme tour guide' who, ignoring warnings, takes them into the city of Pripyat, the former home to the workers of the Chernobyl nuclear reactor, but now a deserted town since the disaster more than 25 years earlier. After a brief exploration of the abandoned city, the group members find themselves stranded, only to discover that they are not alone.
A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything from spiders living in the cellar to his beloved cat.