At the base of Mount Fuji, Seiya and fellow Knights are summoned to a labyrinth of ominous caves for a showdown against the twisted evil Knight Phoenix Ikki for the legendary Sagittarius Gold Cloth. Then Seiya gets tangled up in a ferocious battle with the deadly Black Pegasus Knight and his poisonous Black Meteor Punch. Meanwhile, Swan Hyôga must fight an evil version of himself when he is suddenly attacked by Black Swan Knight. During the fight the Black Swan Knight removes his right eye and teleports it to aid Ikki in his battle against Hyôga. Shun finds the fallen Seiya and is attacked by Black Andromeda Knight and his brutal Black Fang Nebula attack. Will Seiya and his friends have the courage, power and determination to defeat Ikki and his Black Knights?