本片由四位导演的短篇作品组成：1《斩子》由于背叛组织，女杀手斩奈的妹妹斩子被组织绑架。斩奈独闯虎穴，结果姐妹俩皆遭杀害。半年后，侥幸逃生的斩子从重度昏迷中苏醒，她回忆起事件的始末，于是拿起武士刀，决心为姐姐报仇；2《少年武士》6年级小学生龙太郎自幼接受武士家庭的严格训练，成长为秉承仁、义、礼、信的优秀少年。班里的坏孩子勾结不良少年欺负他和他的朋友，更绑架了龙太郎的妹妹，忍无可忍的少年武士前去应战；3《妖刀射程》明治时代末期，一名落败军人在林中发现一把妖刀，最终刀和他的枪结合在一起。时间转到现代，特殊部队SAT小组训练中突遭袭击，15名成员被害。唯一的幸存者久住返回案发现场，与持有妖刀的宿敌展开最终对决；4《ASSAULT GIRL2》荒野、狂风、骤雨，两名女子进行着惨烈决斗

Four segments by four different Directors. Kiriko (Takanori Tsujimoto), The Children’s Samurai (Kenta Fukasaku), The Firing Range (Makoto Tahara), and Assault Girl 2 (Mamoru Oshii). Kiriko: the spirit of a murdered assassin takes revenge on the gang that killed her and her sister. Children's Samurai: an educational film narrates the like of a modern grade-school samurai dealing with bullies. Firing Range: the rifle of a Meiji Era soldier and the pistol of a modern police officer are transformed into powerful new weapons when they face off. Assault Girl 2: two guardian angels duel in a wheat field.