Three years ago, Chen Yi, the ten-time consecutive world welding champion known as the "Welding Emperor," was severely injured and went missing after an explosion while welding a bomb. He was presumed dead by the outside world. Three years later, the World Welding Competition resumed, and patriotic entrepreneur Zhang Hailong arrived at Qingcheng Steel Factory to recruit national talents. To his surprise, he discovered that an apprentice worker, Chen Yi, had mastered the lost art of "Mercury Welding."
