Beliarok demands to hear the rest of Ultraman Zero's battles, who obliges. Zero and his companions begin their search for the Shield of Baradhi so they can overpower the Belial Army. However, someone is waiting for them.

After rescuing Mirror Knight, Zero finally faces off against Kaiser Belial. However, Belial still has a trick up his sleeve, driving Zero into a corner. What new power will Zero gain? The final showdown against his fated nemesis begins.