Light the Dark

 In 1997, in the fog-shrouded petrochemical town of Wugang, a pipeline explosion shatters the Chen family's peaceful life. Chen Fu, the father and head of an engineering team, is framed and murdered while investigating corruption involving pipeline materials. To protect her children, his wife, Zhang Wen Ying, takes the blame for the disaster, only to die under mysterious circumstances soon after. Determined to find justice, siblings Chen Ying and Chen Shan join forces with engineer Qi Mo to bring down the corrupt factory director Wan Yang. However, when Chen Shan digs deeper into Qi Mo's questionable past, he is targeted in a staged car accident, wrongfully accused, and imprisoned while a key witness dies mysteriously. Years later, Chen Shan is released from prison. By then, Qi Mo has become the chairman of the restructured petrochemical company and has married Chen Ying. As Chen Shan's relentless pursuit of the truth threatens to tear the family apart, none of them realize that an even greater crisis is quietly drawing near...