An apocalyptic event has devastated the world, leaving only scattered survivors and fields of corpses. A young boy witnesses his mother's death amid the carnage and, in a state of shock, begins walking aimlessly away from the ruins. He finds shelter for the night in an abandoned school bus and discovers a girl already inside, equally alone and traumatized. Without exchanging names or backstories, the two children form a silent pact and set out together on a long, empty road, moving forward simply because there is nothing else to do.

The setting is an unspecified war zone, likely inspired by real geopolitical tensions, where two unnamed opposing factions have reduced cities to rubble. The world is gray and desolate, and the horizon stretches endlessly before them. The boy and the girl encounter other survivors whose fates illustrate the psychological toll of the conflict. A strange man lost in a loop of his own grief, unable to move on. A man in a suit who kills anyone carrying a weapon, believing he can achieve peace through absolute violence, a moral dilemma that the girl openly questions. Later, the girl’s own past is revealed: she was taken in by a young couple who succumbed to disease and despair, forcing her to continue alone until she met the boy.

The narrative is driven by the children’s quiet struggle to retain their humanity. They share brief, profound conversations about why adults fight and whether a world without hatred is possible. The boy gradually hardens, learning that survival sometimes demands cruelty, while the girl clings to hope even as her innocence erodes. The story culminates in a final separation where each must choose their own path forward, underscoring the theme that life consists only of moving toward the horizon, even when there is no promise of safety or reunion.