Ten years ago, Zhang Xu, the Chinese motocross world champion, was framed for illegal modification, banned from global competitions for ten years, lost his family, and had his right hand disabled. Ten years later, to save his leukemia-stricken son, he substituted in a race on a rainy night and used his unique skill "Flying Stream Cornering", shocking the entire audience. From the repair shop to national and world championships, he gradually uncovered the black curtain of that year, sent his enemies to prison, and finally reclaimed the championship while wearing the national flag.
