An emergency disciplinary hearing at Quantico results in deep secrets being revealed; Alex and her team try to find the real bomber.
More questions arise when the Grand Central Station bombers are revealed; back at Quantico, the recruits receive time off for the holidays.
Alex finds herself in the middle of a congressional hearing to testify about the terrorist bombings. Convinced Elias didn't act alone, she is determined to find answers and the truth.
A training exercise is too close to home for Shelby; in the future, Hannah becomes an Ally to Alex and tries to stop the terrorists from making another strike.
Alex, Shelby and Iris learn some surprising things when they do background checks to determine who gets high-level security clearance; in the future, Alex contacts Claire Haas to find her missing friends.