It is loosely based on the manhua series Chinese Hero: Tales of the Blood Sword by Hong Kong artist Ma Wing-shing.

A group of thugs show up and demand that the Boss hand over a monk, Luohan, whom they believe is hiding in China House.

Luohan tells them how he met and befriended Hero on board the ship bound for America, and their experiences as labourers in Steel Bull Canyon.

Hero entrusted his baby son, Sword, to Sheng before leaving with Shadow to meet their master, Pride.

Before his death, Pride passed Hero the martial arts manual China Secret and transferred all his inner energy to him.

Back in the present at China House, the Boss, Sword, Sheng, Luohan and others come up with a plan to liberate the labourers at Steel Bull Canyon.

They disguise themselves as a Chinese opera troupe, infiltrate the canyon, and catch the supervisors off guard in a surprise attack.

However, Hero appears cold towards his son and constantly keeps a distance away because he strongly believes the fortune teller's words that he will lose his loved ones if he gets close to them.

In the meantime, Black Dragon Commander leads his men to attack China House but are eventually forced to leave by the police.

Before the movie ends, Sword and Sheng prepare to leave America while Hero watches them from a distance and walks away in the opposite direction.