When a lethal airborne virus threatens to wipe out the north eastern United States, educator Elliott Moore (Mark Wahlberg) and his wife (Zooey Deschanel) flee contaminated cities to the countryside in a struggle to detect the truth. Is it terrorism, even that the release of a toxic military bio-weapon -- or something more sinister? John Leguizamo and Betty Buckley co-star in this thriller from Writerdirector M. Night Shyamalan.