Synopsis：Hongwei, having mastered martial arts, returns to his hometown only to find that his childhood friend Laosang, now a thug, has kidnapped his fiancée and forces him to participate in a boxing match to make money. In the final, Hongwei is supposed to intentionally lose to Laosang so that Laosang can cash in on high odds. However, Laosang secretly injures Hongwei internally. Hongwei's fiancée Malin takes him to various hospitals, and later they seek treatment from Hongwei's aunt Nan Feiyan, who helps him recover. Just as Hongwei's injuries are nearly healed, a foreign conspiracy organization targets China's youth martial arts competition. Healed Hongwei is ordered to compete. As Hongwei advances smoothly into the semifinals, he discovers his opponent is Laosang, who has switched to foreign combat techniques. Hongwei defeats Laosang but sustains injuries and exposes the flaw in his quick-kick technique. Because the weakness is analyzed, Hongwei is beaten back repeatedly in the final by the Japanese fighter Ise Ming. At a critical moment, a repentant Laosang suddenly rushes into the ring to protect Hongwei and is beaten to the brink of death. Filled with grief and anger, Hongwei finally comprehends the last move of the quick-kick technique and defeats Ise Ming.