Charlie and Nick both receive a threatening text that sends Nick on an investigation to find the source once and for all. Charlie flashes back to her first interactions with Fatah on Midnight City. Meanwhile, President Payton's rival Senator Green reveals just enough about the upcoming senatorial convoy attack report to cause her to question Charlie's faithfulness. Charlie and team have to employ Jack Dawkins to contain a smallpox contamination in Panama while avoiding detection in the country. Kurt continues to pine for Maureen but an unexpected kindness distracts her from his attentions.

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.