Chiku is a devastated and dangerous town with 5 gangs fighting fiercely. Mugen and the Amamiya Brothers clashed, leading to Mugen disbanding.

The Amamiya Brothers, Masaki and Hiroto, keep looking for their older brother Takeru who disappeared one year ago. The three Amamiya brothers lost their parents when they were young. Since then, they relied only on each other. On the anniversary of their parents' death, Masaki and Hiroto expect Takeru to appear. Instead, they meet a person who has a clue on Takeru's whereabouts.

Members of SWORD win against Wangan Rengogun, which is led by Kohaku. The city becomes peaceful again. Nevertheless, the most brutal gangs, Doubt and Prison Gang, appear. They try to dominate the area controlled by SWORD.

In order to conceal past corruption by the government, the Kyuryu group proceeds on a plan to destroy a street and build a casino. To stop the Kyuryu group, members of SWORD begin to move.

The street fighters of Oya High and the delinquent brawlers of Housen Academy face off against each other when both seemingly attack each other.

Three inseparable friends are torn apart when one of them joins a criminal syndicate threatening to overpower his old friends' gang.

Fists fly when Oya High’s street fighters defend themselves from a three-school alliance of brawlers.

The movie is about the endless miracles during the motorcycle trip of Dan, Tettsu, and Chiharu, the Sannō Rengōkai trio (also known as DTC).