Song Yunhui becomes the youngest deputy at Donghai Chemical, but his success creates personal and professional challenges. Lei Dongbao faces difficulties but perseveres with support from Wei Chunhong. Yang Xun navigates business setbacks and personal loss, with help from accountant Ren Xiayuan. Liang Sishen, a foreign manager, frequently interacts with Song Yunhui, and despite their differences, they come to respect each other’s abilities.

In 1948, as China's civil war reaches a critical point and the Kuomintang's economy collapses, Communist agent Fang Meng'ao goes undercover as an Air Force colonel. Assigned to investigate corruption—led by his own father—and later to help transport national assets to Taiwan, he becomes entangled in a complex power struggle. Caught between duty, family, and political shifts, Fang plays a pivotal role in a covert mission tied to the peaceful liberation of Beijing.