on a routine mission in iraq a group of delta soldier recover a computer hard drive from an alqueda training camp detail the location of weapon specialist dr walsh . after witness the termination of his top secret weapon development program dr walsh find an alternative funding source and set up a new research facility deep in the notorious belzan forest in chechnya where he be develop weapon and sell them to chechnyan rebel . the team of delta be send on a black ops mission to retrieve the doctor and his technology before the russian find him and his lab . what the delta team soon discover be that the doctor late weapon be a flock of large carnivorous bat that have be genetically alter to develop a taste for human flesh . i find this movie to be much good than what i be expect . there be lot of action and lot of blood . it more or less what you would expect from a creature feature . the act isn not great but it passable . i have certainly see bad . overall it an enjoyable movie for what it be . a good popcorn movie .