Reborn Before the Great Freeze

Quinn Warren is reborn before The Great Freeze. She cuts ties with her parasitic sister, sells properties, and joins parents to renovate an air-raid shelter, hoarding supplies and perfecting defense systems. When the apocalypse hits, bringing extreme cold, floods, and villains, her family struggles to survive in their fortress. They rescue mute orphan Rocky and drifter Mountain, fend off raids from the Blackwind Fortress, protecting their home.