This World Alone (2021)

Following a cataclysmic event which left the Earth without technology or power Sam Belle Adamsa bookobsessed girl in her late teenslives in seclusion with her two motherfigures Carrie Walrond Hood Sophie Edwards But after an accident shes pushed out of her protective world and forced to put her makeshift parents opposing worldviews to the test as she faces the physical and emotional challenges of a world reclaimed by nature Synopsis taken from the films official site