The Darkness sweeps across the world like a storm larger than anyone imagined. Survivors rise in the aftermath to find two-thirds of the planet’s population gone, leaving them to build a new society in agriculture without manpower for industrialized cities. Weary of hunting, Sam joins the new leadership and builds a farm in the fertile earth of Kansas where all Winchesters will have everlasting, permanent roots. Meanwhile, Dean and Castiel find it impossible to be separated and their love grows as they fight The Darkness to make the new world safe. Castiel, no longer subject to Heaven’s rule, begins to understand his genderfluid nature. He wants to discover life as a female for just a little while. Dean initially resists the drastic change but can’t lose Castiel again, so they find a witch who can alter his body into a female. Soon they feel a strong desire to have a child, to give their family hope for the future. While Dean and Castiel fight The Darkness, they commit their lives and work through the ins and outs of pregnancy together. Little do they know, their little baby girl is prophesied to save the world, not them. But will Castiel choose to remain female forever? Dean doesn’t think so.