Taking the daughter of an ancient prime minister traveling through the 1970s as the starting point, the heroine relies on her own knowledge, abilities and spatial golden fingers to protect her family, raise supplies, devote herself to the protection of cultural relics, and assist in solving espionage cases in the northwest border where supplies are scarce. She adheres to her original aspiration of patriotism and family love, realizes her personal values, and gains true love, showing the feelings and struggles of little people in a special era.