After the fall of the great wasteland city, ruins and rubble stretch in every direction. Wu Yuan, a young mechanic, and his companion Sha Dudu travel through dangerous ruined zones, meeting Tian, an adventurer familiar with hidden passages, and Sister Lan, the manager of the Rock Fortress. As they fight off threats from the Gray Sand Gang, they explore mechs and secrets left behind by the old world, embarking on an action-packed adventure in a perilous post-apocalyptic wasteland.