In a shocking act of domestic terrorism, a deranged veteran detonates a biological weapon inside a crowded Federal Building. His purpose: To expose the government's secret development of a toxic gas that instantly affects the human adrenal system, causing men, women and children to become inhumanly aggressive and violent. Now the virus is spreading. The building is quarantined. And on the upper floors, a small group of uninfected survivors must band together to get out alive. But how do you escape a raging nightmare that cannot be stopped? Jason London (Dazed and Confused), C. Thomas Howell (The Outsiders), Alicia Leigh Willis ("The L Word"), Lochlyn Munro ("Charmed"), Alexander Mendeluk (The Twilight Saga: New Moon), Robert Carradine and Judd Nelson star in this explosive horror/action thriller where fear is the trigger when madmen unleash THE TERROR EXPERIMENT.