Qin Feng, a policeman, and Liu Tianye, who has gradually become the biggest criminal boss in Hanzhou, are brothers and sisters but represent the polar opposites of black and white. With the development of Hanzhou Port near Longwan Village as the background, Qin Feng's solving of the case as an opportunity, gradually stirred up the overt and covert struggles of several interest groups.After several years of battles of wits and courage with local criminals, multiple cases were finally solved one by one.

In 2008, Hu Xiaoyue, captain of the First Team of the Criminal Investigation Detachment of Hanzhou City Public Security Bureau in Binjiang Province, committed suicide by jumping off a building. His former master Ye Tianyou felt that there was something hidden behind the incident, so he applied to be transferred back to Hanzhou to serve as the director of the Public Security Bureau, trying to uncover the mystery behind his apprentice's suicide.

A week before Hu Xiaoyue committed suicide, he approached his second senior brother Qin Feng, who was the director of the Gutang Town Police Station at the time, and asked him to help him catch dog dealers at a dog farm in the suburbs.

In 1990, little Qin Feng was very emotional and wanted to fight with the Zhao family who killed his parents but was stopped. Wen's mother adopted Qin Feng and Wen Jiangyan.Director Chen of the development zone took the mayor Wu Dainan and Ma Jin to hunt together, during which time he put pressure on Wu Dainan to settle the land lease in Longwan as soon as possible.

Qin Feng and Lao Mai found Lao Jiu and asked the person on the phone. Lao Jiu recognized it as Luo Bo's subordinate Scar. Qin Feng asked Lao Jiu to find out where Luo Bo's black prison was.

In 2002, Xu Li reported that she had been raped and provided the appearance and characteristics of a suspect. The police drew a portrait of the suspect based on the description.Qin Feng and Lao Mai stayed at the Gaoxin Police Station and refused to leave, causing the director of the Gaoxin Police Station a headache.

The two younger brothers looked for Luo Bo, and it turned out that everything that happened to Qin Feng was arranged by Luo Bo.Ye Tianyou came to Hanzhou City Public Security Bureau to take up his post, and all the leaders of the Public Security Bureau greeted him at the door.

In 2002, Lao Mai received a call from Xu Li. Xu Li cried and begged Brother Lao Mai to stop investigating because someone was going to her home. Lao Mai put down the phone and rushed to Xu Li's home with Qin Feng and Hu Xiaoyue.When they arrived, they found many police officers at the door of the apartment. After questioning, they learned that Xu Li had committed suicide by cutting her wrists.

Qin Feng and Lao Mai rushed to the construction site and rescued Liu Tianye and Wen Jiangyong.It turns out that since Hu Xiaoyue's accident, Lao Mai has been watching Luo Bo's every move.

In 2002, Qin Feng, Lao Mai, and Hu Xiaoyue discussed Xu Li's case over hot pot. Various signs indicated that Xu Li's teacher was suspicious.Mr. Wang and Ma Jin discussed using Ye Tianyou’s nephew Ye Siyuan to stabilize Ye Tianyou. Luo Bo felt that Ye Siyuan was difficult to communicate with. Mr. Wang reminded Luo Bo to impress him with true love, but he had to solve the problem of Longwan first.

Liu Tianfei took Scar to a game hall and took Zhao Peng's son Zhao Wenxuan away.Scar forced Zhao Wenxuan to poison Longwan's reservoir to cut off the possibility of cooperation between Longwan and Zhaocun.

In 2002, Ye Tianyou and Lao Mai had a dispute. Because Lao Mai beat someone, Ye Tianyou could only deal with business matters.Wang Tao returned to the city bureau. Someone had pulled the switch ten minutes before they arrived. The surveillance did not capture it. Qin Feng guessed who was the mole.Qin Feng expressed doubts to Ye Tianyou that the loss of Wang Ming's video was related to the ghost in the police station.

In 2002, Lao Mai took all the blame for the beating on himself. Lao Mai asked Qin Feng and Hu Xiaoyue to solve Xu Li's case, and was then taken away by the police.Bian Jing entered the park in casual clothes to conduct reconnaissance and found the box where Luo Bo was. Later, Ye Siyuan came out to chat with Luo Bo and was photographed by Bian Jing and sent to Qin Feng. Qin Feng recognized Ye Siyuan.Luo Bo suddenly received a text message informing him that Qin Feng had found out about Bole Financial Management and wanted to meet him.

In 2002, when Mai Hongchao was sentenced, Qin Feng was transferred from the Municipal Bureau to work at the Gutang Town Police Station.Wang Tao and Bian Jing came to investigate outside Rainbow Network Company and found that it was indeed a money laundering den.

Qin Feng then reported to Zhong Yanning, hoping to use technical investigation methods on Qian Yuhong.However, Zhong Yanning was a little worried and did not want to resort to rash tactics. Qin Feng began to attack Zhong Yanning and persuade him to act as soon as possible.

In 2002, Qin Feng and Hu Xiaoyue from Hanzhou City Prison came to visit Lao Mai, who was still serving his sentence. During the phone call, they learned that Ye Tianyou had been transferred to the province and that no one was investigating Xu Li's case. Lao Mai put down the phone in disappointment and left.

Luo Bo gave the orchid to Ye Siyuan and asked him to give it to Ye Tianyou. This was regarded as Ye Siyuan's certificate of surrender.The next day, Ye Siyuan brought Lanhua to Ye Tianyou's office.

It tells the story of policeman Qin Feng's battle of wits and courage with criminals.The script selects vicious cases in the context of Hanzhou's development and depicts the complex relationship between the police, their families, and interest groups.The main plot revolves around two brothers with different surnames, Qin Feng and Liu Tianye, revealing the depth of human nature and moral conflicts.The storyline is compact and full of suspense, showing the power of choices between good and evil and belief in the rule of law.

Wen Bo, who was still a student at the police academy, went home for dinner. Wen Bo had excellent grades in school and showed Wen Jiangyong the certificate of the first place in the technical competition that he had won. Wen Jiangyong was so happy that he couldn't open his mouth from ear to ear.

Qin Feng and Wang Tao checked the surveillance and found that Wang Tao's mother was in the hospital. Qin Feng went to snatch Wang Tao's mother back, but when she returned to the operating room, it timed out and she could only miss the opportunity for surgery.The mother comforted Wang Tao, hoping that he would live upright, and hugged her son. Wang Tao burst into tears.

Xiao Liu Tianye, Xiao Qin Feng, and Xiao Wen Jiangyan, who made mistakes in 1992, each carried a basket of stones and followed Wen's mother on the mountain road. They carried the stones to the top of the mountain, placed the stones in the basket on the pile of stones, and looked at Longwan from the top of the mountain.

The leaders of the police station held a meeting to discuss finding Song Hao as soon as possible.Ji Zhujiang proposed that although Qin Feng contributed a lot to the case, he hoped that Qin Feng would avoid it because Longwan was related to the matter.Peng Hanzhang told Qin Feng the news and comforted him.

In 2002, at the Gutang Town Police Station, Qin Feng had just arrived at Gutang Town to report for duty. When the director went out to do business, it was Wang Tao who received Qin Feng.Zeng Xu came to Hanzhou this time to perform an undercover mission and has been cooperating with Ye Tianyou.

Ye Tianyou had long thought about using the surveillance to trick Zhujiang into taking the bait.Lao Jiu asked Lao Lin for a drink, checked his driving recorder, and told Lao Mai that a place Lao Lin often visited might be Song Hao or Luo Bo's hiding place.

In 2002, Ye Tianyou led Qin Feng and Hu Xiaoyue to raid the underground casino owned by Su Hongbao and successfully captured Su Hongbao. Hu Xiaoyue did not know Lao Mai and almost caught him as a gambler.Su Hongbao asked Lao Mai to do him a favor and wanted to see his dying father.

On the way back, Liu Tianye's car was hit and stopped, and Guazi Lao came to the car.Liu Tian was also hooded and brought to Zhang Xin. He Biao was also there.

In 2002, Su Hongbao was escorted to the hospital by two police cars. Lao Mai was waiting for him at the door of Su Hongbao's father's ward. Lao Mai opened Su Hongbao's handcuffs and asked him to enter the ward to see his father.Because of this, Su Hongbao trusted Lao Mai.

He Biao agreed to attack Liu Tianfei to scare the monkeys.He Gang led his men to smash Liu Tianfei's plate and captured Liu Tianfei.Qin Feng asked Lao Mai and Ye Tianyou to have dinner together, but Lao Mai was still a little reluctant to see Ye Tianyou again.

In 2002, Lao Mai and Hu Xiaoyue came to visit Su Hongbao, who was still serving his sentence. They told him the news of his father's death and helped him arrange his father's funeral arrangements. Su Hongbao kowtowed to thank Lao Mai and Hu Xiaoyue for their great kindness. 

Qin Feng and Zeng Xu began to test Guo Yaoyang and the casino.On the other side, Lao Mai stopped Su Hongbao who was about to go out.Wu Si, who was hiding outside the Hefeng Wenwan store, found that a large number of police officers had arrived at the scene and quickly called Su Hongbao.

In 2003, Lao Mai was sentenced to prison. Some criminals had known Lao Mai's original identity and wanted to cause trouble for him, but Su Hongbao was also in this room. He already knew what happened to Lao Mai, helped Lao Mai out, and found him a bed with a better location.

At night, Liu Tian also sat in the room watching his son sleep. Zhao Ziyi was shocked when she came out after making milk powder and saw Liu Tian. Early the next morning, Liu Tian and Qin Taoyi were about to leave by car. Zhao Ziyi came out to persuade them to stay for a meal but failed.

In 2005, Ye Tianyou, Qin Feng, and Hu Xiaoyue came to pick up Lao Mai after he was released from prison.Peng Hanzhang came to see He Biao, and He Biao forced Peng Hanzhang to help him, telling him that he deliberately framed the drug trafficking case that Peng Hanzhang solved. Peng Hanzhang was equivalent to an unjust, false and wrong case.

Back then, it was because of this case that Peng Hanzhang was injured for Yan Ming and was transferred to the Municipal Bureau by Yan Ming.Peng Hanzhang was entangled and wanted to confess to Ye Tianyou, but in the end he failed to knock on his office door.

In 2005, Qin Feng and Hu Xiaoyue pooled their money to help Lao Mai buy a taxi and find him a livelihood.After Lao Mai was released from prison, he went to visit Xu Li's grave.Qin Feng reported to Ye Tianyou and decided to attack He Biao's casino and put pressure on them. Ye Tianyou put Peng Hanzhang in charge of this special operation.

After meeting Li Zheng, secretary of the municipal party committee, Qiao Defu met Zhang Xin, and the two were somewhat tit-for-tat.In order to speed up money laundering, Liu Tian also bought a gas station and a seafood restaurant, and Zhou Sisi was invited by Liu Tian to manage the seafood restaurant.

In 2002, Qin Feng and Wang Tao, who were working at the police station, went to investigate forged certificates and accidentally bumped into a drug dealer.Zhang Xin learned that Ye Tianyou was eyeing Qiao Defu, and wanted to transfer Qin Feng to work elsewhere.

Ye Tianyou found Li Zheng, secretary of the municipal party committee, at the city hall and deliberately asked if the port development zone project and Qiao Defu were in trouble.Wen Jiangyan met Zhang Xin by chance, and found out that Zhang Xin and Wen Jiangyan were schoolmates and Wen Jiangyan's senior sisters. The two exchanged contact information with each other, and Zhang Xin warmly invited Wen Jiangyan to go to her racecourse.

In 1990, Wen's mother and her family were having a meal. Xiao Liutian, who was about to take the college entrance examination, thought carefully and proposed that he would give up the college entrance examination and stay in Longwan to help Wen's mother. Wen's mother made him kneel down. Xiao Qinfeng gave the meal to Xiao Liu Tianye and said that he wanted to be a policeman to catch bad guys in the future. Xiao Liutian also gave Qin Feng a lucky coin.

Su Hongbao came to Qiao Defu's office and started asking for Qiao Defu's gambling debts, but Qiao Defu didn't accept this trick at all. When Su Hongbao saw that the debt was unsuccessful, he spray-painted words on Qiao Defu's car to demand the debt.

In 2002, Ye Tianyou, Qin Feng, and Hu Xiaoyue were chasing a criminal. After cuffing him, they heard Hu Xiaoyue calling for help. They rushed over and found that Hu Xiaoyue's clothes were caught on the iron railing and he was hanging in the air. Ye Tianyou and Qin Feng rushed to rescue him.

At this time, Deputy Director Chu Qingtong of the Provincial Department proposed to transfer Qin Feng to the Port and Shipping Branch for training. Qin Feng declined Chu Qingtong's transfer because he still had cases in hand. Both Qin Feng and Ye Tianyou felt that someone wanted to block Qin Feng's investigation.

In 2002, Qin Feng came out of the police station and found Liu Tian sitting at the door. He brought chickens to Qin Feng and the others, and Qin Feng invited Liu Tian to eat some noodles.The Qiao Defu port project has been delayed in resuming work, and Qiao Defu's capital chain has problems. Ye Tianyou feels that someone is targeting Qiao Defu and his Chengjian Group.

After Qiao Defu was investigated at the Public Security Bureau, the three Changwu brothers were already at the door and took Qiao Defu back to the company. Qiao Defu discovered that He Biao and Gang had taken Qiao Defu's wife to drink tea in the office. They threatened him with Qiao Defu's wife and children, forcing Qiao Defu to agree to He Biao's investment in the port project.

After Lao Mai was released from prison, he visited Xu Li's grave and found someone secretly watching him. It turned out to be Guazi Man, who belonged to Zhang Xin. He told Zhang Xin that Lao Mai was still investigating Xu Li's case, but Zhang Xin did not take Lao Mai seriously.

At the same time, Zhang Xin also found Liu Tianye. Liu Tian also used Qiao Defu's company as a bargaining chip and made a request to serve on the table. However, Zhang Xin told Liu Tianye that if he wanted to serve on the table, he could not bring any mud on him.

In 2005, Wen's mother and others were celebrating Wen Bo's admission to the police academy, and the family was having a great time.He Biao later planned to gamble his life with Liu Tianye. Soon, Qin Feng received an explosive news that Ma Jin's body appeared.

According to the on-site investigation, it was determined that Ma Jin died of homicide. This long-sealed case finally had clues again.Lao Jiu visited Lao Mai in the hospital and gave him the money Su Hongbao had saved for Lao Mai before his death, but Lao Mai confiscated it.

In 2005, Ding Xiaoshuai was sitting alone in front of Wenbo's house. Wenbo came out to get some air and happened to see him. Ding Xiaoshuai gave him a gift to congratulate Wenbo for being admitted to the police academy.The people of Longwan were very angry when they learned that Wenbo was under investigation. They secretly left the money to Wenbo's family, and their family didn't know at all.

Now that he has been found out, it must be He Biao who reported it.Liu Tian also understood that the biggest crisis at this time was not Wen Bo, but being found out about Longwan smuggling. He immediately made arrangements and decisively cut off his flesh to protect himself.

Qin Feng, Wen Jiangyan, and Liu Tian, all dressed in police uniforms, also gave flowers to their dead parents' graves, recalling the time when Wen's mother adopted Qin Feng, Wen Jiangyan, and Liu Tianye.The three of them once met their ancestors in the ancestral hall and became brothers and sisters, but now the three brothers and sisters have drifted apart and embarked on completely different paths.

The Municipal Bureau found no evidence of smuggling in Longwan, but Peng Hanzhang still suggested keeping an eye on Longwan and transferring Qin Feng and Wenbo away.

In 2010, Ding Xiaoshuai was sitting at home drinking alone. Ding Xiaoshuai's father came out to teach him not to hang out with Liu Tianye. Wen Jiangyong died following them. He was strong in everything if he was down-to-earth. Ding Xiaoshuai felt that his father was a coward and he wanted to go on his own. The father and son broke up on bad terms.

In the villa, Zhao Peng asked about Liu Tianye and Zhao Ziyi. Liu Tian also felt that Zhao Ziyi and his son would be better off if they left him, and had already signed a divorce agreement.