In the riot-torn 1960's Tokyo of an alternate history... a special police force, the  Capitol Police Organization ( CAPO) has been formed. Within CAPO is the special unit that gets the toughest jobs. Some of the men in the unit, according to rumour, comprise a vigilante group called the  Wolf Brigade.  Fuse, a member of the special unit, broods obsessively about a terrorist girl who blew herself up in front of him. Then he meets the girl's sister and becomes emotionally involved...