Watch online: Big Search - China Shanghai Film and Television Network (www.chinashh.com)

The series "Big Search" you are watching is from Shanghai Film and Television Network of China.

Ho Ching Song, the illegal red oil kingpin, became a target for both Hong Kong police and domestic public security due to an unexpected explosion of his oil truck. His business was forced to stop, family members began to rebel, and competitors were closing in, leaving him surrounded on all sides. On the surface, Ho Ching Song seemed utterly defenseless, but in reality, he had been secretly planning for several months. Unexpectedly, on the day when everything was about to succeed and the situation was about to be reversed, his only son was kidnapped!

Senior Inspector Si Tu Mu Lian is a rising star in the police force, known for her astuteness and efficiency in the law enforcement community. Her cold-hearted nature helps her solve cases, but it makes her feel helpless in her emotional life. After being infatuated with her boyfriend for more than ten years without getting married, and now nearing the age of being considered a high-risk pregnancy, she decided to cut ties with her boyfriend when she received the task of investigating the kidnapping case of Ho Ching Song's son! With his son kidnapped, Ho Ching Song was anxious and mobilized everyone in his gang to investigate. He obtained intelligence that his competitor had brought in people from the mainland to deal with him! Just as his subordinates were preparing for a full-scale war against their opponent, Si Tu Mu Lian led her team into the Ho family! Originally, the idea of starting a war left Ho Ching Song hesitant, as he knew his subordinates were all opportunists. With his son kidnapped, there was also someone working inside out, making all his subordinates unreliable. Listening to Mu Lian analyze the case, Ho Ching Song decided to cooperate with the police to save his son. The police activated the highest level of action mechanism, named "Cheng Long Operation". All Hong Kong police officers and even domestic public security personnel were on standby! Captain Zhao Tian He was summoned to join, completely unaware of the operation's content. At that time, his only thought was to personally arrest the mastermind behind the oil truck explosion several months ago.

Several months ago, Zhao Tian He received information and initiated a raid on the red oil group. During the operation, while chasing the oil truck, it unexpectedly flipped over, crushing a private car and causing an explosion. A mother and her child burned alive in front of Tian He, leaving him deeply affected. Fortunately, the husband of the deceased, Xu Banzhan, understood and they became close friends! Cooperation between the black and white forces was almost unheard of, leading to constant conflicts, and the investigation progress was at a standstill. Mu Lian discovered she was pregnant, plunging her into an emotional crisis; Ho Ching Song was desperate to save his son while preserving his gang, making it difficult for him to please everyone; Zhao Tian He, upon discovering that the victim of the kidnapping case was Ho Ching Song, was furious! As the chance of rescuing the hostage grew increasingly slim, a gang battle turned Mu Lian and Ho Ching Song from enemies to friends. Meanwhile, Zhao Tian He discovered that the mastermind behind the kidnapping was none other than Xu Banzhan, who was determined to seek revenge...

In a long, dark night, dozens of oil trucks in Hong Kong and mainland China exploded for no apparent reason. Police and public security personnel rushed out en masse to swiftly pursue the culprits! At dawn, the kidnapper Xu Banzhan surprisingly turned himself in! Simultaneously, under the protection of the police by land, sea, and air, Ho Ching Song went to exchange hostages, only to find that the person coming for the trade was Public Security Captain Zhao Tian He...

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