On November 22, 1963, President Kennedy was killed in Dallas and the world changed forever. But what if it could be changed back? James Franco stars as Jake Epping, an English teacher who accepts the monumental mission of trying to prevent the assassination of JFK. Luckily, he has the help of Sadie Dunhill (Sarah Gadon), a resourceful librarian who's trying to reconcile secrets of her own. Executive produced by J.J. Abrams and based upon the bestselling novel by Stephen King.