Fate/strange Fake

The Holy Grail War is unfolding in Snowfield, Nevada, with mages from around the world summoning Servants, heroic spirits from myth and history, to fight on their behalf. This time, however, the ritual seems to be drawing from data from a previous war in Fuyuki, leading to unusual occurrences. Unbeknownst to most participants, the conflict is actually a staged war, with a separate set of seven true Servants summoned for a genuine Holy Grail War.