Basilisk, Vol. 4: Tokaido Road - Region 1 DVD

Again equal in number, both of the Kouga and the Iga harbor sorrow and despair. But the rage of a few may shape the fate of many. The clans follow separate paths to Sunpu Castle, as Gennosuke seeks the solution the the riddle, this costly ninja war. But treachery and death follow hard at their heels, as theose blinded by hatred long harbored seek to shorten the list. The past weighs far too heavy on the present, and the path to carnage is one that cannot be escaped, once begun. No mercy will be spared to the enemy.