Emergency room nurse Jackie Peyton does everything she can to provide her patients with the best care possible while navigating the waters of a crumbling health-care system. But she has a secret that is increasingly difficult to keep from people -- she relies on Vicodin and Adderall to get her through high-stress shifts at a New York hospital, where she isn't above bending the rules to keep things running smoothly in the face of indifferent doctors, penny-pinching bean counters and miles of bureaucratic red tape.