Eight years after being listed as missing in action and presumed dead in Iraq, Marine Corps Sgt. Nicholas Brody is found alive in an Al Qaeda prison. He returns home to a hero's welcome and begins reconnecting with his family. His wife Jessica welcomes him back while his daughter Dana has only a slim memory of him. Son Chris doesn't remember him at all. He's not aware that his wife had begun a serious relationship with his best friend. Meanwhile, CIA agent Carrie Mathison has been back in Washington for 10 months after a tour of duty in Iraq that ended when she bribed her way into an Iraqi prison to question a detainee minutes before his execution. In return for a promise to protect his family, he tells Carrie a great secret: a US soldier has been turned. She now suspects Brody and after the Agency dismisses her concerns, sets off on her own to find evidence against him.