Hassan (Ayad Akhtar
), a Pakistani engineering student in Paris, is apprehended by Western intelligence services for suspected terrorist activities. Imprisoned and tortured, Hassan is provoked to action. Following his release he embarks on a terrorist mission, surreptitiously entering the United States to join a cell based in New York City.
On the morning of the planned attack, all members of the cell are arrested except Hassan and the cell’s charismatic leader, Khalid. Hassan takes refuge with Sayeed, an unsuspecting childhood friend, who is living the American dream with his family in New Jersey. As each day passes, Hassan finds himself torn between his religious beliefs and his growing feelings for Sayeed and his family. Hassan tries to decide whether or not to carry out his deadly mission.