In June 1993, the transnational cooperation between Donghai Chemical and Luoda Company was in full swing, and Song Yunhui (played by Wang Kai), a key figure in promoting the joint venture in Donghai, was not as good as Donghai's Pengyang Pesticide Factory in all aspects with workers to carry out process reform, and Song Yunhui, who had experienced a huge gap from Donghai to Pengyang, still adhered to the original intention of struggle. Lei Dongbao (played by Yang Shuo) led Dengfeng Wire Factory to merge small factories and establish the Thunder Cable Cluster. Yang Xun (played by Dong Zijian) and Liang Sishen (played by Yang Caiyu) cooperated to build a shopping mall. Liang Sishen tried his best to balance the interests of Luoda and Donghai in the joint venture, and finally used his own exit to restore safe production in Donghai. From avoiding suspicion at the beginning to gradually opening up, Song Yunhui and Liang Sishen exchanged hearts and minds to face the challenges of the future together. All the way up and down, the wind and clouds are changing, but what remains unchanged is the hard work and hard work of the people who are brave enough to pursue their dreams.