The local yakuza gangs dominating the port of Yokohama do not take well the invasion of their territory by a daring biker gang, led by a girl in black leather…

Katsuji takes revenge on evil Tamaru who forcefully took control of the fishery business run by Katsuji’s friend.

The son of a prominent member of a fishing community returns home after a stint with the yakuza to find his father has died under orders of a local gang…