Tian Daqiang and Wu Jianwei are brothers who practice martial arts. Twenty years ago, the master passed away and passed the sword to Tian Daqiang. Tian Daqiang married the master's daughter Wang Lihua. Tian Daqiang and Wu Jianwei parted ways. Twenty years later, Wu Jianwei asked Tian Daqiang for the sword on the condition that his master's ashes were sent back to the ancestral cemetery of the Qingshan sect in Laoheishan, another province.
Something unexpected happened, and Tian Daqiang was involved in a black copper material theft case. Tian Daqiang was forced to flee the factory. In times of crisis, apprentice Xiao Du took in Tian Daqiang on the condition that he take care of the Du family's old house for Xiao Du. The old house is being demolished, and Wu Jianwei is the leader of the demolition team. Wu Jianwei used the gimmick of demolishing old houses to force Tian Daqiang to give up his sword. Tian Daqiang, Wu Jianwei, and Wang Lihua fought for the sword.
In panic, Tian Daqiang accidentally did another drug transport job. The drug dealer discovered that the drugs were missing, and Xiao Du was kidnapped by the drug dealer. In order to survive, Xiao Du pulled his master Tian Daqiang onto his back. Tian Daqiang found copper plumbing parts at the place designated by Xiao Du. Drugs were hidden in the plumbing parts. At the same time, he also found the black copper missing from the factory. Tian Daqiang wanted to give Xiao Du a chance to start a new life and did not call the police. Tian Daqiang went alone to save his unlucky apprentice, but fell into the trap of a drug dealer. The lives of both master and apprentice were hanging by a thread. At the critical moment, junior brother Wu Jianwei stepped forward to catch the drug dealer and made great achievements. Wu Jianwei, the leader of the demolition team, was convicted of two criminal cases and sentenced to eight years in prison. The misunderstanding was also solved. The sword was a Tang sword that had been passed down for thousands of years. The two city cultural relics departments began to compete for the Tang sword again. In the end, the master's ashes were not returned to the Laoheishan ancestral cemetery.
Intention: Return from lost ways, justice defeats evil.