The class of '09 meets for the first time at Quantico; in the past, Agent Poet concludes her most challenging undercover operation.

The class must pass a physical fitness test or face expulsion. In the past, Tayo struggles. In the present, he faces a dangerous threat. In the future, these shocking events were behind radical changes to the Bureau.

At Quantico, the Class of '09 faces the meaning of taking a life. In the present, the Agents must thwart a terrorist attack and to save lives, they must take a life. In the future, we come face to face with their trauma.

Past: The Class of '09 grapple with the complex history of the Bureau, Tayo meets the love of his life. Present: We see how his dreams of making amends are threatening that love story. Future: The Class of '09 finally confront each other.

Past: The Class of '09 face the impossible challenges of Hogan's Alley. Present: Poet pursues a deadly serial killer and is helped by an old friend. Future: Tragedy strikes and the justice system is no longer under human control.

Past: At Quantico, the final tests before graduation are accompanied by a reveal of where the trainees will be posted. Present: Tayo's extraordinary rise to power is propelled by artificial intelligence. Future: Tayo falls from grace.

Present: Tayo seizes control of the Bureau. Future: The Class of '09 reunites in a final showdown with the system they created. Past: The trainees graduate, wondering where they will all end up.