When an unexpected snowstorm strikes Seattle, the dead rise from their graves to prey on the city's helpless citizens. From the confines of their living room, a group of unlikely heroes emerge to stop the flesh hungry hordes, only to discover that zombies aren't the only evil they are up against.
Dr. Megan Hunt was in a class of her own, a brilliant neurosurgeon at the top of her game. But her world is turned upside down when a devastating car accident puts an end to her time in the operating room. Megan resumes her career as a medical examiner, determined to solve the puzzle of who or what killed the victims.