Before their grandfather died of illness, Xiaohong and her younger brother Xiaobing learned that the abandoned house in the west of the village held a shocking secret. The two sneaked into a dark cellar late at night to decipher mysterious symbols and compete for ancient treasure chests. However, they were surrounded by greedy villagers. In the thin line between life and death, the village chief uncovered the strange truth that had been sealed for decades - the cellar was actually a hiding place for cultural relics. The sister and brother fought against the evil villains to protect the national treasure, and finally swore an oath in front of their grandfather's grave to pass on the responsibility of protecting the national treasure.
