After her father's death, Jiang Ya discovered that her mother Wen Fuyao remarried frequently. Each of her husbands died mysteriously on their wedding night, and villagers called her a "husband-killer." After investigation, Jiang Ya found that Wen Fuyao was actually an undercover agent. She remarried frequently and poisoned her husbands to obtain keys in search of national treasure. In a conflict, Wen Fuyao was seriously injured while protecting Jiang Ya and confessed everything on her deathbed. After learning the truth, Jiang Ya, carrying her mother's ashes, fulfilled her mother's uncompleted wish and traveled across the mountains and rivers of the motherland.