In a post-apocalyptic America where societal collapse has taken root following a series of unspecified cataclysms, a survivalist ethos predominates among scattered communities. Devoid of centralized government, technology, or a functional postal service, these enclaves are often isolated and insular, struggling to maintain any semblance of civilization amidst frequent skirmishes for dwindling resources. It is against this backdrop that a lone drifter, finding himself in a desperate situation, stumbles upon a long-abandoned postal vehicle. Inside, he discovers a corpse clad in a postal uniform, along with undelivered mail and a bag of mail carrier's paraphernalia. In a moment of inspiration, or perhaps desperation, he assumes the identity of a postman, a relic from a bygone era, in hopes of leveraging the respect and authority associated with the role for food and shelter.

Donning the postal uniform, the protagonist begins his journey from one isolated community to another, invoking a sense of nostalgia and hope among the people by delivering the decades-old mail. His actions, initially driven by self-preservation, inadvertently start a movement. The symbolism of the postman stirs a yearning for connection, community, and a return to a more organized society among the people he encounters. The routine of delivering mail becomes a catalyst for change, knitting together the fragmented populace through the revival of communication, rekindling a collective identity, and inspiring a sense of unity against the chaotic backdrop of their world.