Quantico will showcase a different side of the NATS in the midseason finale.

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In the future, "Inside" will reveal the true terrorists (yes, plural), but back at Quantico, the pressure will be off. After weeks of tests and training, Alex and Co. will receive a well deserved break as the holidays approach. Unfortunately, the festivities will be marred when secrets rise to the surface.

"["Listen" is] a slightly different episode ... unlike what we've done before," executive producer Josh Safran told Entertainment Weekly. "There is an exercise, but it's not the typical exercise. The majority of the episode takes place on a night off. The fun of that episode is it's a real taste of the real world after the NATS have been in this summer camp for as long as they've been. And they're going to look amazing."

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Sounds like the trainees will trade their blue and tan for something a little more striking.

So, whose darkest secrets will come tumbling out in episode 11? Find out when "Listen" airs Dec. 13 on ABC at 10 p.m. ET.

Click the video below to see a preview for the series' next episode, "Guilty."