Episode Title:
The Fifth Contractor.
Episode Description:
Rin wakes up after having a dream about how Archer became a Servant in the first place. She later becomes upset with Archer, who suggests that Caster would have been a more reliable ally than Shirou. At school, Shirou and Rin learn from Issei that Kuzuki has been living at Ryuudou Temple with a mysterious woman, who is believed to be his fiancée. Rin theorizes that Kuzuki is Caster's Master and plans on attacking Kuzuki with a nonlethal magical attack to observe his reaction. The following night, Shirou, Saber and Rin set up their quarters at an abandoned gas station where Kuzuki usually passes by. When Kuzuki arrives, Rin fires the magical attack at him. Kuzuki is unaffected and Caster arrives for assistance. An outraged Shirou confronts Kuzuki and asks if he knew about Caster's attacks on innocent people. However, Kuzuki responds that he was unaware but did not care in the slightest, revealing himself to be a former killer. Rin then attacks Caster as a distraction while Saber tries to strike Kuzuki, but Kuzuki uses magically-strengthened fists to subdue Saber and Rin. Once Kuzuki brutalizes Shirou, the latter responds by summoning Archer's dual swords and uses them to repel Kuzuki's attacks. When Saber and Rin regain consciousness, Kuzuki and Caster flee. Rin asks Shirou how he was able to summon weapons, and he reveals that while he specialized in strengthening magic, he first succeeded at using projection magic. Meanwhile, Shinji meets his new Servant Gilgamesh, who dismisses the strategy to kill innocent people for their mana and reveals the plan to use the Holy Grail to kill most of the human population in the world.
