Carrie (Claire Danes) is recuperating from her breakdown and electroshock therapy, trading in her job at the CIA for one as a teacher. However, her superiors recruit her for a dangerous job in Beirut, bringing her back into the world of deception and intrigue.
Meanwhile, former POW Brody (Damian Lewis) is now in office. Despite not sticking to the original plan to detonate the bomb and kill the president, he is clearly still tied to terrorist Abu Nazir and engages in treacherous activities. However, the one person who knew of his deception, Carrie, has forgotten key memories because of the electroshock therapy and is now convinced of his innocence.