Li stars as an avid athlete who encounters conflicts with American navy sailors, primarily in the boxing ring.

One day, an American Navy Captain named Hans (Kurt Roland Petersson) is driving recklessly through Qingdao's streets, causing a mob to become angry and surround his car.

Jet and his fellow band of soldiers and rickshaw-drivers retreat during the chaos to a bar, which they discover now caters primarily to foreigners with a boxing ring and is frequented by prostitutes.

Jet and his friends are angry at the insults hurled at them by American Navy patrons, which leads to an American soldier named Bailey (Paulo Tocha) challenging Jet to a formal boxing match.

During the match, Jet struggles with only being allowed to use his fists, and frequently breaks the rules due to his ignorance of American boxing.

Later, Bailey and a Chinese prostitute (Song Jia) approach Zhang for a rickshaw ride.

Furious, Zhang tips over his rickshaw and insults the woman, causing her to leave in tears.

The job requires Jet to be a "sparring partner" for Bailey, where he cannot fight back and must sustain many blows.

Captain Hans attacks Bailey for paying the bar-owner of the scheme, putting a shame to the Navy.

Rui takes Jet to her house, removes his wet clothes to prevent him from catching pneumonia, and helps him rest and recover.

However, he asks Zhang for advice: if his new girlfriend is a prostitute, but promises to quit, should he give her a chance?

While looking for Rui, Jet is confronted by Hans, who wishes to continue the fight from the other night.

While in jail, Jet is severely beaten by the local police for "causing trouble," and the American soldiers are let go.

With Hans severely beaten on the ground, Jet picks up an axe, screams, and swings it downward.

In South Korea, the film sold 782 tickets in the capital city of Seoul.