Z for Zachariah

Mankind is at the end. A catastrophe has wiped out almost the entire civilization, only Ann's farmland is not contaminated. The young woman believes she is the last man on earth, until John suddenly appears. As the two struggle to survive, they grow closer. But their togetherness ends abruptly when another survivor appears, the attractive Caleb. But in a world where there is only one woman, two men are one too many...