Z for Zachariah (2015)

Ann Burden has been living a secluded life on her family farm, coming to terms with the fact that she may be the only survivor of an apocalyptic event which has been God's will. One day, John Loomis stumbles into the valley in his failing anti-radiation suit. As Loomis slowly regains his strength, he gradually becomes part of Ann's humble rustic life, and a bond develops between them.