In feudal Japan, when a samurai had a justifiable reason for revenge, the government could issue anadauchi, official consent for vigilante justice. In this issue of Usagi Yojimbo, our sword-wielding hare encounters just such a samurai on the hunt for fourronin who killed his father. But unfortunately for the angry son, three of the renegade samurai have joined a vicious gang. With the help of Usagi's twin swords of fury, the son might have half a chance, but these guys are one tough bunch.Will Usagi and the young samurai make it out alive? Has Usagi made another one of his brash decisions in helping the young man?