A 21-year-old part-time nurse named Carter Lament spends an afternoon with her childhood friend, Winter August, after a long and miserable day of healing those who survived a failed escape to asylum from the ruthless Wolverine Army. Once the two go their separate ways, a mysterious woman approaches her, alone. Alarmed but compassionate, Carter attempts to help the woman, but this interaction would lead to a life changing event, filled with vengence, human experimentation, fighting, and connection, for not only them but the entire country.