The wolf clan of Ayame is being attacked by youki fleeing a super goast in the hills. The wolf clan flees looking for Koga to fight this Zombie. This Zombie is eating all the youki he can find and is pursuing the wolf clan and the fleeing youki. Ayame runs into our heroes and disscuss the problem but then contiunes to look for Koga. Koga is found and goes to advenge his commards and friends. Behold the Zombie (who is a resureded super-human) has a Shikon shard (one guess who gave it to him) and a huge fight takes place.
Koga wins (i wont spoil it how he did it) and kills(how can you kill something already dead?) the Zombie and saves the day. Something is resurecting bad humans and they are after Inuyahsa.