In Shantou in the 1930s, Wang Liwen (played by Wang Qianyuan) unexpectedly met his old friend Chen Jiadong (played by Chen Weiting) while performing a mission. The two brothers joined forces to investigate a secret mission, but the appearance of a mysterious man disrupted their original plan. As the investigation deepened, the struggle between the two brothers became increasingly obvious. The storm has arrived, and everyone in the vortex is trying their best to turn the tables...