The film's story unfolds in the fictional country of Laika and in Hong Kong, China. A police academy student who has not yet graduated, Ashan (played by Gu Bin), is tasked with a dangerous mission. He helps the criminal organization by eliminating obstacles for their leader, Atian (played by An Zhi Jie), in prison. Ashan approaches Atian, gains his trust, and collects evidence against the criminal group. After both of them are released from prison, Ashan assists Atian in rising within the criminal organization in Hong Kong. After enduring numerous challenges, Atian successfully replaces the group's leader, Bao Ge (played by Zeng Zhiwei), becoming the new boss and taking control of the organization. However, just as Ashan is about to complete his mission, his true identity is exposed.
When the regime of Laika was changing, black and white undercurrents were surging. Some people wanted to make a fortune, some wanted to use this to whitewash, some wanted to escape from Laika, and some wanted to establish a foothold in Laika... The police placed an undercover police officer, Zheng Zha, lurking among the biggest black force in Laika, Boss Song, but they didn't know that there were others who wanted to take this opportunity to take revenge on Boss Song.
