An unstoppable event threatens the world's population by attacking the most basic human instinct of all: survival. Elliot Moore is an ordinary man who is trying to save his family from a terrifying, invisible killer. As Elliot discovers the incredible possibility of what is happening, it becomes very clear that no one is safe.

Special features: Deleted scenes with introductions by M. Night Shyamalan; "The hard cut" featurette; "I hear you whispering" featurette; "Visions of The happening: a making-of" featurette; "A day for Night" featurette; "Elements of a scene" featurette; gag reel.