Los Angeles, once an international metropolis with good security, entered this century of materialistic desires. With the emergence of a mysterious organization, the original fairness and justice were overturned. After Liu Yansheng, a rising star in the police world, entered the CBI, he joined forces with his classmate Kang Zhengyang, Los Angeles University engineering doctorate Zhang Siying and others to solve one case after another, smash one conspiracy after another, use his actual actions to maintain the tranquility of the city, and declare war on the mysterious dark organization...
