A quest for vengeance wouldn't be complete without a little poison. Having tired of his retainer's futile attempts at reining in the unstoppable samurai, the shogun himself sends Abeno Kaii, a master of poison, to join the Yagyu in their hunt for ronin Itto Ogami and his little boy Daigoro. Armed with a sack full of poison and a network of streetwalking spies, Abeno creeps ever closer to the father and son. Soon Ogami and Daigoro find themselves surrounded on all sides, facing deadly secret agen