The 12-episode series follows Wang Xiang, an ex-train driver who had worked his whole life at the steel plant in a fictional small town in North China, as he attempts to solve the mystery behind a brutal murder during the autumn of 1998. For more than 20 years, the murder has haunted him and other people who worked at the steel plant as they struggled to come to terms with the loss they’ve experienced.

The story is set during the late Ming Dynasty when a mysterious epidemic breaks out. It follows the thrilling journey of Chu Sijing, a member of the secret service, as he navigates a life-or-death crisis on a deserted island.

In 1945, Harbin has come under the rule of Japan's puppet state known as Manchukuo. Communist agent Song Zhuo Wen successfully infiltrates Harbin Secret Service where Guan Xue holds a post as the chief of special police.

The play is adapted from the work of the same name by writer Li Juan. Li Wenxiu (played by Zhou Yiran), a Han Chinese girl who grew up in Altay, is determined to pursue her literary dream in a big city. However, she repeatedly encounters obstacles and is forced to return to her hometown to rely on her mother (played by Ma Yili) who runs a small shop. After meeting Kazakh boy Batai (played by Yu Shi), Wen Xiu gradually discovered the beauty of the local area.