A woman lives alone on a farm that belonged to her family in the aftermath of a nuclear apocalypse, believing herself to be the last survivor of the human race. Her simple life is disrupted by the appearance of a second survivor, and they adapt to working together - but the arrival of a third individual threatens everything they have built. Sci-fi drama based on Robert C O'Brien's novel, starring Margot Robbie, Chiwetel Ejiofor and Chris Pine.