Ep 4. The Strongest Enemy

In Fate/stay night season 1 episode 4, titled "The Strongest Enemy," we see Shirou training with Saber to better defend himself against the other servants. As he is practicing his combat skills, they are suddenly interrupted by a powerful magical signature that signals the arrival of a new enemy.

The new servant, known as Berserker, appears before them and immediately challenges Saber to a battle. Despite Saber being a skilled warrior, Berserker proves to be an incredibly formidable opponent, blocking all of her attacks with ease.

Meanwhile, Rin and Archer also sense the arrival of a new servant and set out to investigate. As they arrive at the scene, they too are surprised by Berserker's immense strength. Rin quickly realizes that they must work together in order to defeat the enemy servant.

As the battle between Saber and Berserker continues, Shirou can't help but feel useless as he watches from the sidelines. However, with some encouragement from Saber, he is finally able to summon his own projection magic and join the fight.

Together, Saber and Shirou launch a surprise attack on Berserker, catching him off-guard and temporarily stunning him. Rin and Archer then use this opening to launch a powerful arrow at Berserker, which finally defeats him.

The episode ends with Shirou reflecting on the battle, realizing that he has much to learn in order to become a true mage. Saber also notes that they cannot afford to let their guard down, as there are still many powerful enemies out there who will test them in battle.

Overall, "The Strongest Enemy" is an action-packed episode that showcases the intense battles and high stakes of the Fate/stay night universe. Viewers will no doubt be on the edge of their seats as they watch Saber, Shirou, Rin, and Archer team up to take down one of their most fearsome opponents yet.