20 years after the Revolution of 1911, Huo Zhenshan opens a school to promote Chinese martial arts. But a new challenge in the black market emerges.

When internal strife leads to a conspiracy to assassinate the emperor, it is up to a group of loyal warriors to protect the emperor and defend the kingdom.

During the republican period, it was rumored that Taiping Town was a city of sin where murderers and bandits gathered. Tian Long was in charge here. He had Four Assassins and as long as they were defeated, Tianlong's power could be destroyed. Yao Tingsen, the captain of the police station, wanted to eradicate the evil force, in fact, it was far from as simple as what he thought...