In the apocalypse, Summer was betrayed by her ex-husband Mike and her best friend Ann, leading to her tragic death. She is reborn seven days before the end of the world — right at her own wedding ceremony. Immediately, she calls off the wedding and leaves with her mother. She sells her property to stockpile supplies, renovates a villa into a secure fortress, and rescues a black-backed dog that will later evolve. The apocalypse and an extreme ice age arrive one after another. Zombies keep mutating, and her enemies repeatedly come to her doorstep with schemes — but she foils them all. Her mother becomes infected with the virus, so Summer assembles a team to head toward a safe zone in search of a vaccine. Along the way, they are repeatedly ambushed by their enemies. Summer makes new companions, thwarts the villains' conspiracies, seizes the vaccine to save humanity, kills her enemies with her own hands, and finally enjoys a peaceful life with her mother.
