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

Two sets of parents divorce and marry each other, while their children Miki and Yuu are caught in the middle and start falling for each other.

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