Ten years ago in Fuyuki City, a young boy was caught in a massive inferno that incinerated his parents and consumed a large portion of the city; as he was dying, a man saves him. Now this boy, Shirou Emiya, is an amateur mechanic who attends school at Homurabara Gakuen. Shirou also seems to be quite a bit of a magician but his abilities are no where near the level of his late father's. Meanwhile, the city is beginning to be plagued by gas spills and homicides and with Shirou's sense of justice starts to kick in, what could someone like him possibly do?

After the meeting with Kirei Kotomine Shirou and Rin leave the church only to run into another Master that goes by the name of, Illyasviel von Einzbern. Saber is forced to go into combat against an incomprehensibly stronger servant, called Beserker. With Saber's previous injury still causing major problems and reducing her fighting capacity, is there even a chance of her winning?

Saber and Shirou practice for a bit, Saber completely dominating over Shirou and not training how some would think but just a straight out attack between the two of them where Shirou keeps getting hit and slammed to the floor multiple times. Saber comments on how Shirou is doing fairly good and she is amazed by his zeal and things. Thy take a break and Shirou asks Saber what wish she wants granted if she got the Holy Grail.Shirou heads out to buy things for lunch and he runs into Ilya. They talk for a bit about their past and Ilya says where she came from. Shirou tells her that he inherited something precious from him. He says how he didn't receive his fathers Magic Mark but says he is still a master, just a half-assed magician.Shirou gets home, he talks with Rin who says at school Shinji asked her to team up with him. Rin says she rejected him though, saying she was already partnered with Shirou and she trusts him a lot more.Archer says how much of a failure Shirou is and that he would never be able to defeat a Servant. He does however seem to give him some advice saying that, If you cannot defeat someone, imagine something in your head you can defeat them with, for that is all you will be able to do.

Shirou falls asleep and sees a dream of a flashback of Saber's past. We see Saber in plain olden time cloths walking up to a sword in a stone.Saber wakes up and notices Shirou is gone. She talks to Rin and despite Archer's objection they go looking for him, suspecting he has been kidnapped by an enemy.Shirou wakes up in Ilya's house as her captive. Ilya says how she wants Shirou to become hers.

Rin, Saber and Archer just outside of Ilya's mansion. They see Ilya walk out so they soon head inside to rescue Shirou.Rin asks Archer to slow Berserker down by himself while the rest of them escape. Archer says fine but asks if it's ok to kick Berserker's ass while doing so. Rin kind of smiles and they run off, leaving Archer to fight Berserker. Before they leave Archer yells out Emiya Shirou. Shirou stops and Archer tells him, Get this straight: You are not one who fights. You're nothing more than one who creates. Throw irrelevant thoughts away. There's only one thing you can do. Master that one thing! Archer then causes part of the ceiling to fall separating them so that Shirou will run away.The fight between Archer and Berserker commences.

Archer has been defeated by the unbeatable Beserker and now Shirou, Saber and Rin are trying their best to escape the same fate. They are able to find shelter to bide some time, because Shirou has to find a way to replenish Saber's mana while Ilya looks for them. With Archer's sacrifice, Rin is that much more determined to get out of this alive and comes up with an elaborate plan. The beginning of a fight between Saber and Berserker commences.

The battle is at the turning point, where Rin is about to be squashed by Beserker and Saber is unable to save her. As a last resort Saber decides to use her Noble Phantasm to defeat Beserker, no matter how it would affect her. Realizing that Saber could disappear from this, Shirou forces her to stop and decides to take matters into his own hands.The advancement of Shirou's character as we find what he is really able to do.

Shirou wakes up after having yet another dream of Saber's past and is clearly shaken up by what happened. That morning, during breakfast, Ilya is introduced by Rin as another person to be staying there for a while and Taiga seems to accept it well. Meanwhile there have been news on even more gas leaks, meaning that the Master at Ryudouji seems to be escalating his plans. While Shirou, Rin and Saber are planning what to do about this, Ilya enters the room with a great deal of information on this topic.