Credit: STILL

Jennifer Morrison has tackled some dramatic and intense moments on Once Upon a Time, but none of it holds a candle to what goes down in her new thriller Event 15.

In the film, she plays White (not to be confused with Snow White), a soldier who recently returned from active duty in the Middle East and suffers from post-traumatic stress disorder. In the trailer below, we see her dealing with the tail-end of her treatment at a medical facility in Washington DC — saying, “I look at the checkout girl, or my family, and I just know what they will look like dead” — and ultimately being released.

However, it isn’t that easy. Moments after she gets into the elevator with two fellow soldiers, there’s an explosion, jolting the car. Suddenly, they’re stuck, as a series of explosions has hit the capitol and DC is under attack. Since there is a radiation cloud headed their way, they’re told to stay where they are, a rescue squad coming to get them.

Simple enough, right? Again, not so much. As the trailer continues, we see that their vital signs are being tracked, there’s cameras on them, and, according to White, a commander “knows more than she’s telling us” and they need to escape.

From there, the action only gets more intense, with bloodshed, escapes planned (and failed), and fights erupting with one soldier in particular. Everything is not what it seems, and apparently the biggest threat comes from within.

Read on for the official Event 15 synopsis, and then watch the trailer below to see all the drama and thrills!

“Set in a military medical facility in Washington DC, EVENT 15 tells the story of three soldiers recently returned from active duty in the Middle East. Suffering from the effects of post-traumatic stress disorder, they are undergoing treatment for the condition under the supervision of military doctors. As the three soldiers leave the medical facility one afternoon, they take the same elevator, excited to return to friends and family and a life away from the war zone.”

Will you go see Jennifer’s new film? Tell us below!