Apocalyptic radiation sweeps across the land, and the safety zone uses "Gold Cards" to lure people inside. Lin Qing sacrifices himself to cover his teammates' retreat. Yukun and Zishu enter the "Golden Cage," only to discover that its outer ring is merely an abandoned buffer zone. In their desperation, they spark a rebellion, ultimately giving their lives to protect the last seedling. At the end of the darkness, a hint of green quietly takes root.
