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.
The NATS of Quantico finally reach their graduation day; Alex and her team are faced with the terrorist.
The NATS meet with representatives from various branches of the FBI; Alex discovers some familiar faces while searching for the terrorist.
The new CIA recruits continue training at The Farm; in the future, Alex infiltrates the terrorist group holding everyone hostage and is shocked to learn not everyone is a stranger.
A suspicious Harry is determined to learn more about Alex and Ryan's plan; Owen recruits Leon for a special assignment; in the future, Alex is cornered by the terrorists.