廉政公署经过多年的调查,对理达贸易集团负责人陈超群和海关的官员张嘉玲进行起诉,因为钟嘉玲常年受贿帮助他们非法销售。在开庭前夕,身为警察线人的许植尧却临阵逃走了,没有出庭,最后这个案件成为了无头案。因此法庭给检察官一个星期的时间,为了案件能够顺利的审核下去,警察们劝退出动。负责这个案件的队长陈敬慈全力寻找走私的证据,江雪儿去澳洲负责寻找许植尧。陈敬慈做了一份假的证据,让钟嘉玲由嫌疑人变成了证人,让案件没被取消。他们在调查过程中发现许植尧还有一个双重身份,许植尧也有可能是罪犯,因为江雪儿发现有人一直在澳洲暗中保护他。但是即使理清一个谜团后,还有下一个谜团等待他们弄清楚,其中背后的阴谋更是远远超过他们的想象
After years of investigations, the Independent Commission Against Corruption prosecuted Chen Chaoqun, the head of Lida Trading Group, and Zhang Jialing, an official of the Customs, because Zhong Jialing took bribes to help them illegally. Sale. On the eve of the trial, Xu Zhiyao, who was a police informant, ran away and did not appear in court. In the end, the case became an unsolved case. Therefore, the court gave the prosecutor a week. In order for the case to go through smoothly, the police persuaded them to quit. Chen Jingci, the team leader in charge of the case, tried his best to find evidence of smuggling, and Jiang Xueer went to Australia to look for Xu Zhiyao. Chen Jingci made a fake evidence, turning Zhong Jialing from a suspect into a witness, so that the case was not cancelled. During the investigation, they found that Xu Zhiyao had a double identity, and Xu Zhiyao might also be a criminal, because Jiang Xueer discovered that someone had been secretly protecting him in Australia. But even after solving one mystery, there is another mystery waiting for them to figure out, and the conspiracy behind it is far beyond their imagination