Fate/Zero Specials ( Air Date 2012-03-25 ) Genre Action & Adventure, Animation, Sci-Fi & Fantasy category. Overview "In the Holy Grail War, seven magi chosen by the Holy Grail itself must summon seven Heroic Spirits to compete for the omnipotent Grail, a magical device that grants the victor any wish they desire. After three inconclusive wars, the fuse has now been lit once again for the fourth time.".