Based on the comic by Ayumi Tachihara

The widow of a murdered yakuza boss serves jail time for attacking the man she believes killed her husband. After her release, as she is shadowed by a hitman, she returns to thoughts of revenge.

Izumi (Kento Hayashi) was abandoned by his parents. He now commits burglary, targeting women and the elderly. He is chased by the cops. While on the run, in the mountains of Miyazaki Prefecture, he helps an injured elderly woman, Suma (Etsuko Ichihara). Izumi then stays at Suma's home. At first, Izumi keeps an eye for money that he can steal. The people though in the village think Izumi is Suma's grandson and take care of him. A change takes place in Izumi.

德川幕府建立，结束了连年征伐的战国时代。就在武士们已经遗忘了何为忠勇的元禄年间，一桩震惊寰宇且影响深远的事件爆发了。赤穗藩藩主浅野内匠头（堤真一 饰）因受吉良上野介（津川雅彦 饰）戏弄愤而拔刀，由此触怒将军，不得已切腹自尽，赤穗藩也遭到倾覆的命运。时过境迁，以家老大石内藏助（佐藤浩市 饰）为中心的武士沦为浪人，但是他们并不甘心主公蒙冤泉下，于是大石及其儿子主税（冈田准一 饰）、堀部安兵卫（木村拓哉 饰）等47名浪人武士苟且偷生，隐忍蛰伏，时刻等待着向吉良上野介复仇的机会。飘雪冬夜，47浪人来到仇家门前，一段传奇历史即将展开。 本片以堀部安兵卫的视角，再现赤穗武士们可歌可泣的复仇大业……

Set in the year 2000, when the level of Labor accidents begin to escalate around Tokyo Bay, police detectives Kusumi and Hata are assigned to investigate. What they discover leads to a series of government cover-ups, conspiracy concerning a new biological weapon entitled WXIII-Wasted Thirteen and a tragic, personal connection to Hata. The only hope to stop this threat is to cooperate with the military and lead WXIII into a showdown with the Labors of Special Vehicle Division 2.