With most of his family already dead at Ogami Itto's hands, Retsudo launches one final plot to destroy him, and when that fails, unleashes the fury of every remaining member of the Yagyu clan.
Ogami Itto is challenged by a quintet of warriors, each armed with one fifth of Ogami's assassin fee and one fifth of the information he needs to complete his assignment.
When 150 guns are stolen from Iwakuni base and two police officers are shot dead, a detective criminal tries to find out the truth.