Harry (Russell Tovey) will be revealed as someone not to be trusted. Meanwhile, Shelby (Johanna Braddy) and Leon (Aarón Díaz) take their relationship forward.

In the upcoming seventh episode of "Quantico" season 2 — titled "Aquiline" —Harry will be revealed as someone untrustworthy trusted.

The synopsis released by The Futon Critic reads: "At the Farm, the trainees learn their next task is to decide on a drone strike, which triggers Alex's (Priyanka Chopra) memories of Simon's (Tate Ellington) sacrifice. Meanwhile, Shelby and Leon's relationship reaches the next level, and Nimah (Yasmine Al Massri) advises Alex and Ryan (Jake McLaughlin) not to trust Harry. In the future, Alex questions if she can trust Lydia (Tracy Ifeachor), leading to combat between the two."

In a previous interview with IBTimes, Tovey revealed that his character has a mysterious past that will be unveiled as season 2 progresses.

"You're yet to find out what Harry's past is and that's the intrigue and suspense of, 'Who is Harry?' basically. And the more he discovers about other people, the more he can adapt to his surroundings," Tovey explained.

Meanwhile, Shelby and Leon will move forward in their relationship. What started out as a fling will become more serious, and as previously revealed by reports, will develop into something deeper than what she had with Caleb (Graham Rogers) in season 1.

But her new romance will not take her focus off the job as she keeps an eye on Miranda (Aunjanue Ellis) and her reasons for siding with the terrorists.

In "Quantico" season 2, the CIA is very deceptive with their motives. It is up to Alex to piece everything together and to uncover the truth that lies behind certain events, especially with Miranda helping the terrorists and with Harry snooping around her past.

"Quantico" season 2 airs every Sunday at 10 p.m. EDT on ABC.