At the Haikunlun Mountain Post, recruit Zhou Zheng poured out the hot milk tea delivered by a "herdsman" because of his addiction, but accidentally escaped a fatal conspiracy - the bowl of milk tea was brewed with the body oil of Basang, a herdsman who disappeared in an avalanche three months ago. As the grass died in strange ways, "empty shells" imitating the deceased appeared inside the post one after another, and comrades were transformed into "ghost feeders" inside, Zhou Zheng and the post commander Gao Jianjun discovered that what they faced was not a natural threat, but a parasitic "empty shell" that could imitate human obsession. Under the guidance of the Tibetan Lama, the survivors launched a desperate counterattack with rock salt and flames, and barely managed to hold on to the post after paying a heavy price.
