After eight years since the events of the first film, a scientist has designed a new species of bat genetically designed to be biological weapons in a confrontation between Chechen and Americans.

Genetically mutated bats escape and it's up to a bat expert and the local sheriff to stop them.

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.Plot summaryAdd synopsis