Quantico has its eyes on you, Shelby.

Shelby Wyatt (Johanna Braddy) is currently at the center of two (possibly connected) mysteries. First, there's her parents' web of lies. Second, there's her role as The Voice's kidnapping Uber service. Little does she know, there's someone watching her as she reads her parents alleged letters...

"It's funny, you know, you're supposed to pretty much have an inkling when she gets those letters - somebody is watching her read them," series creator Josh Safran explained to Entertainment Weekly. "I think that's pretty much an indication of where those letters are coming from."

Not only will that question be answered in next week's "Fast," but viewers will also learn why Shelby is working for the Voice. We can only presume that she, like Alex (Priyanka Chopra), was under duress. On Sunday, Quantico will reveal the whole truth.

"In the next episode, you will learn more about why Shelby was the one seen driving that car," Safran explained. "It's a good one."

That's not a guarantee that Shelby isn't aligned with the terrorists. For now, there are only three people viewers can 100 percent take off their suspect list.

"I think the only people you can rule [out] are Simon, Alex and Will," the EP informed TV Guide.

So, what's in store for "Fast"? Check out the official logline to find out:

"It's career day at Quantico as the NATS meet representatives from various FBI branches to help them decide their future paths," ABC teased. "In the future, Alex continues to search for the terrorist, and in the process, discovers some familiar faces - including one who knows the terrorist's endgame."

Find out more when Quantico airs Sundays at 10 p.m. ET on ABC. Click the video below to see a preview for the series' next episode.

Tags
Quantico, Television, ABC