"Quantico" has impressed ABC in its first three episodes to give the FBI drama a full-season order.

The six additional episodes bring the season total to 19 with the possibility to tack on a few more, according to TVLine. The show follows Alex Parrish (Priyanka Chopra) as she tries to prove which one of her classmates at Quantico planned a massive terrorist attack in New York City by remembering their first weeks of training.

"Quantico" drew 7.1 million viewers in its premiere episode on Sept. 27 and a 1.9 adults 18-49 rating, and it gained another 4 million in Live + 3 ratings. The show's audience dropped slightly (3 percent) in its second week but held its demo rating.

The full-season order is the second of the fall, following NBC's "Blindspot" last week. "Limitless" on CBS is likely the next network drama to get a full-season pick up.

"Quantico" airs on Sundays at 10 p.m. on ABC.