Quantico is an American thriller drama television series which aired on the American Broadcasting Company (ABC) from September 27, 2015, to August 3, 2018, with 57 episodes broadcast over three seasons. Produced by ABC Studios, the series was created by Joshua Safran, who also served as the showrunner. Mark Gordon, Robert Sertner, Nicholas Pepper and Safran are its executive producers. Michael Seitzman replaced Safran as the new showrunner and an executive producer in its third season, with Safran remaining as an executive producer.
Priyanka Chopra stars as Alex Parrish, who joins the Federal Bureau of Investigation after graduating from the FBI Academy and becomes a prime suspect in a terrorist attack on Grand Central Terminal. Quantico initially had two timelines: the present, when Parrish flees from captivity to prove her innocence, and the past, with her and her fellow recruits training at the academy, during which details of their individual lives are learned. The series switched to a single timeline from the middle of the second season onward.