The first 168 episodes of "Unforgettable" broadcast on CCTV mainly describe the story of the protagonist Wang Shengtian's hard struggle to build a business from scratch, interspersed with his emotional entanglements with three women. Director Wang Wei stated that the focus of the second season's 160 episodes will be on the second generation of the main characters. As time passes, Wang Shengtian and his younger brother Shengzhi shift their careers towards electronics and do business with the Japanese, becoming commercial rivals once again. Meanwhile, Lizhu and Shengtian's son Tianzhu has grown up but ends up helping outsiders scheme against his own father. In the first season, Xuelian, Lin Dazhong's wife, falls off a cliff to her death, surprising many viewers. Wang Wei explained that this was because Han Yu, who played Xuelian, had to film another drama, so they designed this plot point. However, due to the audience's fondness for Han Yu, there were requests for her character to "come back to life".