Grab those bulletproof vests, Quantico fans; the terrorist manhunt is not quite over.

After a season of false accusations, manipulation, and distrust, the world finally knows that Liam O'Conner (Josh Hopkins) is the most dangerous bomber to target New York City since Osama bin Laden. That being said, the disgraced assistant director isn't done blowing our minds. After all, what would a season finale be without a few jaw dropping reveals?

"It's Liam. No more twists. That's it," series creator Josh Safran assured TV Guide on Suday, despite quickly tacking on a nerve-wracking addendum. "Well, I take it back. [Laughs] Sorry! There isn't a twist, but there is more to the story. That's how I would phrase it."

Safran's phrasing immediately makes us wonder if O'Conner wasn't acting alone. We know he blackmailed and coerced an entire class of NATS into committing some pretty horrendous crimes--Elias (Rick Cosnett), Will (Jay Armstrong Johnson), and Drew (Lenny Platt) were just a few of his victims--but there always the outside chance that he had a willing accomplice. When Quantico wraps its freshman season this Sunday, all your questions will finally be answered.

"I can't [tell you if he had a partner], unfortunately," Safran teased coyly in the wake of "Right." "In one week, you'll have all the answers. ... The how' and 'why' will be next week and that's very much the entire plot of the entire episode. In fact, the opening five minutes should not be missed."

Titled "Yes," Sunday's episode will provide a definitive conclusion to the 2015-2016 mystery before setting up Alex's (Priyanka Chopra) season 2 adventure (click the video below to see a preview).

"It's graduation day for the NATS of Quantico, while, in the future, Alex and her team find themselves head-to-head with the terrorist," ABC teased.

Are you ready for "Yes"? Find out more when Quantico airs Sundays at 10 p.m. ET on ABC.

Tags: Quantico television ABC