In the winter of 1980, educated youth Lu Chengfeng returned to the city with the right side of his face burned by fire and the bronze gear left behind by his father, only to find that the state-owned machinery factory was being acquired by Hong Kong businessman Chen Yiu Fai at a low price. In the air-raid shelter, he found the log of the "Planetary Gear Set" developed by his father in 1967, revealing the past when Soviet experts stole the technology and Lin Xue's father fell to his death. In order to protect the industrial heritage, Lu Chengfeng teamed up with Lin Xue, the daughter of a factory doctor, and Zhou Mubai, a returnee engineer, to use CAD technology and bionic robotic arms to break through the technological blockade. However, at the Canton Fair, Chen Yaohui stole the data and sued him for infringement.
As the 1992 Southern Tour speech set off a wave of reform, Lu Chengfeng's team relied on rocket vibration frequency matching technology to win international orders, but fell into the vortex of the policy game between factory director Zhang Jianguo. In the end, at the Wenchang launch site in Hainan, Lu Chengfeng used the whistle left by his father to awaken Lin Xue, who had suffered a recurrence of trauma, and used the reverse torque formula to defuse the "time bomb" designed by Soviet experts. When the Long March rocket pierced the sky, the bronze gears turned into satellite orbits, witnessing the nirvana of Chinese industry from technology theft to independent innovation.
This is an epic of the times about scars, inheritance and breakthrough - as the gears turn, the fate of individuals and the industrial rise of the country are closely intertwined, and in the roar of history, a movement that never returns to zero is played.