The heroic and righteous Tian Zao (played by Zhao Lusi) assists the Military Control Commission and the Working Committee in catching spies, and joins the party as a work activist. He shoulders the responsibility and mission of the first-generation neighborhood committee director. He and his childhood sweetheart Tiedan (played by Hou Minghao) help each other and keep pace with their work.
At the early stage of reform and opening up, the baton of neighborhood committee director was passed to Tian Zao's daughter Xiaomin (played by Cai Wenjing). She led young people in the hutong to become self-employed and bravely start their own businesses. She also used her intelligence to solve problems for self-employed people. Lin Weidong (played by Liu Huan) was originally one of the first people to "get rich" in the early days of reform and opening up, but his business suffered setbacks. Later, under the influence of Xiaomin, he regained his confidence in life.
After the new century, Tian Zao's granddaughter Lin Yue (played by Guan Xiaotong) became the third director of the neighborhood committee. With the assistance of modern technology, Lin Yue took the management of the neighborhood committee to a new level. Together with the equally young and promising grassroots worker Ouyang Hui (played by Lin Yi), they devoted themselves to the renovation of the old city and gave back to the city that grew up with them.
