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 outfit and cowboy hat - reminiscent of the earlier war victors. Old and new grudges lead the two girl gangs to clash in several fights. However, when one of the leaders dies, the girls end up by uniting against the male gangsters that had been using them as puppets - and it all ends in a great finale mixed battle by the seashore.

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