Your Destination for Everything Anime

Format: TV
Number of Episodes: 24
Year Broadcasted: 2006
North America License: FUNimation

Summary:
Emiya Shirou lost his parents in an accident 10 years ago. Adopted by the sorceror Emiya Kiritsugu, Shirou has limited magical powers and unable to succeed his adopted father after he passed away. However, strange events are happening in the town once again, just like 10 years ago. When Shirou accidentially summoned a Servant named Saber, he is drawn into the fifth Holy Grail War. Suddenly, friends become foes, all in the name of winning the mysterious Holy Grail...

Note:
Based on the PC / PS2 game Fate/stay night.