Pretty good, though I had two problems in suspension of disbelief, one small, one large. First the small: Lliam Neeson's gas mask should not have had a full seal, because of his facial hair. Second, and a biggie: Why didn't the microwave emitter cause the water in PEOPLE to vaporize? I was expecting mushy exploding people. At very least, the water in their brains would begin to boil, causing irreversible brain damage and death..