Kiritsugu and his daughter Illyasviel stroll through the Einzbern woods. As Saber watches the happy parent and child, she ponders why Kiritsugu has not spoken to her since she was summoned. And in Fuyuki City, the battle ground where the Holy Grail War will be fought, the seventh and final hero is summoned.

All the servants have been summoned and now it is a game of spy vs spy. Who will be the first to take the initiative in Fuyuki City?

Battle rages throughout Einzbern Castle: Kayneth's magical mercury sphere versus Kiritsugu's formidable gun arsenal, Saber and Lancer join forces against Caster in the forest, and Irisviel detects a new enemy as she and Maiya make their escape.

The battle against Caster continues as the Heroes have no way of stopping him. Toki is trying to appeal to Archer to use his Noble Phantasm to obliterate the monster. Kiri meanwhile, is planning to destroy the source of the monsters powers.

Saber vs. Berserker, Archer vs. Rider, another hero will fall and a secret will be revealed.

As commanded by Kiritsugu, Saber unleashes her Noble Phantasm on the Holy Grail, with a completely unexpected result. Who will end up winning the war?