It appears that some sort of deadly toxin is being released into the air. Cut to Elliot (Mark Wahlberg) a science teacher in Philadelphia. When he learns of the attack on New York, he meets up with his wife Alma (Zooey Deschanel), his friend Julian (John Leguizamo), and Julians's daughter, Jess (Ashlyn Sanchez).
They make plans to get out of the city via train, but the train is evacuated in the middle of a small Pennsylvania town. When they learn that the mysterious toxin is spreading its way across the Northeast, they break up into groups, with Elliot, Alma, and Jess running through open farmland in search of safety. They are unsure of where to hide, or what exactly they are hiding from, until Elliot slowly forms a theory about the threat.
He fights to keep Alma and Jess free from harm, and the film builds to a unsettling climax.
M. Night Shyamalan directs this thriller about a father (Mark Walhberg) who tries to escape with his family after an apocalyptic event. THE HAPPENING costars Zooey Deschanel and John Leguizamo.