Little People. Big Era, is a captivating social drama that explores the complexities of family, love and career against the backdrop of China’s rapid development over the past decade. The story revolves around Anna, a resilient woman from a small fishing village who embarks on a journey to seek financial security and wealth in Guangdong province.

Prices are soaring, gangs, warlords, and foreigners are rampant and domineering. The oppressed and bullied people most hope that justice will come. So a group of righteous and brave young people stepped forward and used their wisdom and faith to disperse the darkness.

A rental house in Shanghai caught fire. Yu Shengnan, a female professor at the Medical University, found a woman's body very suspicious, so he quickly called the chief inspector Zhong and his partner Han Fei. After preliminary autopsy and on-site investigation, Katsuo and Zhong Lang concluded that the deceased was murdered before the fire...

On a quiet day, Abin, a boxer who claims to be a friend of Zhong Lang, called the laboratory of St. John's University and asked Yu Shengnan to tell Zhong Lang that there was an important life-threatening matter to him.

In the old Shanghai before liberation, forces from all sides gathered here, and they grew up and down, rampant and domineering. The two major underworld forces, the Qinglong Gang and the Qilin Gang, often fight for supremacy, and blood splatters on the streets. One day, three members of the Qinglong Gang were dead on the street.

Taking advantage of the holiday, Yu Shengnan, a female professor at the Medical University, came to Guanghua Relief Society to see a doctor for the poor. Zhong Lang, the inspector of the patrol room, came here to visit Shengnan, and met Shengnan who had helped him back then.

Located in the Ma Sinan Road Prison in Shanghai's French Concession, the police detective Zhong Lang, his partner Han Fei, and Yu Shengnan, a female professor at the Medical University, jointly arrested Yu Liben, a murderer who cut his throat.

A railroad worker in China in 1941 leads a team of freedom fighters against the Japanese in order to get food for the poor.