Episode 20: Return of the Assassin

The Holy Grail War is building to a climax. This begins to have an effect on the body of Irisviel, the Grail's guardian. Kiritsugu leaves Irisviel's side, the coldly ruthless expression he once wore while on the battlefield with Maiya Hisau back on his face. Elsewhere, Waver goes to a certain place to aid Rider, who expended most of his mana during the battle with Caster.