Charlie and the PDB team race to prove that sorority girl Stacy Dover is, in fact, an active member of Ar Rissalah's American terrorist cell. Amidst the high stakes investigation, Charlie is forced to confront the fact that one of her closest allies may have betrayed her. Meanwhile, Operation Bellerophon is in full swing as Nick Vera gets one step closer to contact with Omar Fattah. But Charlie's efforts to bring down Ar Rissalah may not be able to prevent an attack on the homeland.

Each day the President is faced with dozens of life and death decisions, and to prioritize the biggest international crises facing the country, one top CIA analyst — Charleston Tucker — assembles the President's Daily Briefing (PDB). This list of the most vital security issues facing the nation brings with it moral and political judgment calls for Charleston and... her trusted group of brilliant analysts at the agency. Aside from the political minefields she has to walk, Charlie has a close personal relationship with the President because she was once engaged to her son before a tragic terrorist attack took his life. Charlie survived that attack and is now determined to bring the perpetrators to justice. Navigating a complex personal life and a pressure-cooker profession is, of course, a challenge, and Charlie sometimes engages in boundary-pushing behavior to avoid facing her grief. But when the clock strikes 2 a.m., she is all about her job — protecting her nation, serving her President and still trying to get to the bottom of her fiancé's murder that will reveal itself as a shocking mystery.