Apocalypse Revenge Fortress

Apocalypse arrives. Vivian Turner and mother Lara Sheridan killed in past life by father Dexter Turner, grandparents, mistress, illegitimate son. Reborn before apocalypse, they sell mansion. They renovate a cave into a doomsday fortress. She hoards supplies, sets up defenses. She takes on relatives, exposes illegitimate son's fraud, watches Turner family suffer. Taking revenge, enjoying ease, embarking on a counter-attack fueled by wealth.