At first, this seems like any other apocalyptic movie about a bomb shelter. Ray (Alexander Skarsgard of TRUE BLOOD), his wife Claire and young daughter Zoe has spent 300 days in a a dusty, forgotten looking underground shelter. They are living on canned food and do not go to the surface because that's where the monsters, the "Breathers", are. Through a series of flashbacks we find out that there was a virus in their town and that it was quarantined by the government. They tell the fleeing townspeople to go back home and many of them do, only to be bombed by fighter jets. Ray and his family flee-and manage to find the shelter they are in just before the surface is bombed. The movie builds a sense of dread and the "Breathers" are terrifying. At the end these creatures do find the family-and they have to flee. But how can they survive when they are hopelessly outnumbered?
This is one of those movies, like THE SIXTH SENSE, that needs a second viewing because of the double twist ending. This is one of the best "zombie movies" of the decade. Highly recommended.