Lone Wolf and cub battle against their most powerful enemies yet. In the fourth instalment of the series, Daigoro is kidnapped by his father's most dealy enemy Retsudo- head of the Yagyu assasssin clan. Hired to kill a the delicious and deadly Oyuki- a lady ninja who confuses her enemies by fighting topless- the Lone Wolf must fight for his son against an army of assassins in the biggest body count battle in Samurai history.