Fate/Zero: Season 1

The ultimate battle royal, in which seven Masters vying for control of the miracle-granting Holy Grail summon seven Servants and fight until only one remains...

The Holy Grail War. After three inconclusive wars, the fuse has now been lit once again for the fourth time. The Mages rush to the battleground of Fuyuki, each with long-held dreams of victory riding on their shoulders.