The film starts with an unsolved murder case and creates a group portrait of the police of the 3rd Brigade. After the murder, ** was not caught, and the master was seriously injured. The suspect was caught, and one slipped through the net. During the interrogation, the suspect was killed by the 3rd Brigade due to a mistake. So the captain Cheng Bing and others changed from police officers to prisoners.
After being released from prison, the case of that year was still haunting in his heart, and Cheng Bing began a journey of thousands of miles to chase the murderer. He met with several brothers from the 3rd Brigade that year, and found that one of them was worse than the other. In front of the master's grave, the 3rd Brigade of that year was regrouped. There are no police uniforms, no support, no documents, but this is the 3rd Brigade composed of the police soul in their hearts. To punish the evil and eliminate the evil, not by the police uniform on the body, but by the righteousness in the heart.
But while chasing the murderer, the 3rd Brigade is not only facing the pressure of solving the case, but also experiencing the sorrows of their own lives. Because the burden of this long pursuit of the murderer is not only themselves, but also their families. From Guangdong, to Hunan, to Sichuan, Liaoning. Then to Yunnan, Guizhou. Most of it has been to China. Looking for a person in the vast sea of people is tantamount to finding a needle. The long road to hunt for murderers not only tests patience and perseverance, but also tests faith and will. The film shows the immortal police soul in Cheng Bing's heart. Cheng Bing said that he had to get the police uniform right in his heart. Some people are police officers when they wear police uniforms, and police are their profession, and some people are still police officers even if they can never wear police uniforms again in their lives, and police are his beliefs.
As the years passed, the members of the 3 brigades quit one by one, and gave up one by one, some to repair the crumbling home, some to build a happy and warm home, some to fight the future of their families, and some to fight against the disease. The reorganized 3 brigade is only the captain Cheng Bing. Until his temples are frosty white, he still has a bright future. Walking alone in the happy scenery of the vast sea of people, Cheng Bing's inner confusion and pain are expressed by this huge contrast. Do you give up chasing the murderer and start over, or stick to your faith and chase it to the end? How many 10 years are there in life?
Yes, how many decades are there in life? In the past 10 years, some people have been on the rise, some people are enjoying happiness, some people are fighting for their dreams, and some people are wasted years and mediocre. There are also people who are only dedicated and persevering for justice and conscience for the sake of their blood. The film portrays Cheng Bing, a good man who believes in the police, and chases the murderer for 10 years, just for the original promise. The golden shield is cast by blood, and the blood is still not cold without the police uniform.