Kim Taeyeon, a young, gifted, internationally acclaimed astronaut crashed landed back on Earth after a nuclear war had started. The catastrophic events reset the entire existence of everything living. She finds herself lost, alone and in deep despair with every failed attempt at finding signs life. Stuck on a dying planet while unable to let go of the past or navigate a future, Taeyeon starts to do what she does best. Tinkering, scrapping and recreating an AI with a familiar face that will better her chances of survival as she endlessly searches for survivors. Will she be able to survive in this new harsh reality? Or is despair her only companion on a dying planet?