Set in a military medical facility in Washington D.C., 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. When the elevator unexpectedly jams between floors, they are shocked to discover that Washington D.C. is under terrorist attack from a series of bombs causing a city-wide evacuation. There will be no assistance to get them out. Isolated and faced with the prospect of death by radiation, the highly stressful situation brings previous wartime experiences to the surface. Oblivious to the dark and controlling forces at work outside the elevator, the soldiers turn on each other in a desperate attempt to take control but, as conditions in the elevator deteriorate, a brutal battle for survival ensues which only one of them will survive.