Fuyuki City - a city surrounded by the sea and mountains becomes the setting for an ancient ritual. Seven masters are given control of heroic spirits in order to realize the mythical Holy Grail, which is said to grant its owner any wish. These heroic spirits or servants represent legendary heroes of various classes: "Saber," "Lancer," "Archer," "Rider," "Caster," "Assassin," and "Berserker." Each master will enter into a contract with their chosen servant and battle the others to the death until only one pair remains... This is the "Holy Grail War." 
 
The young and capable mage, Rin Tohsaka, prepares for her long-awaited Fifth Holy Grail War to begin... With her servant Archer, Rin enters the Holy Grail War as the sole heir to the prestigious Tohsaka family after her father's death. But when Shirou Emiya, a boy from Rin's school, unwittingly becomes a Master and is fatally wounded in battle, she has no choice but to save him. With Shirou and his servant Saber, Rin sets out to strike down the conspiracies surrounding the Holy Grail War. Will the Holy Grail bless Rin and Shirou's path toward victory or will they be cursed with defeat? 
 
(Source: Aniplex of America) 
 
Notes: 
- Includes Prologue. 
- The first, second and last episodes aired with a runtime of ~48 minutes as opposed to the standard 24 minute long episode.

Episode 0 - Prologue

Episode 1 - Winter Days, A Fateful Night

Episode 2 - The Curtain Goes Up

Episode 3 - The First Battle

Episode 4 - Finding the Will to Fight

Episode 5 - Dancing After School

Episode 6 - Mirage

Episode 7 - The Reward for the Fight to the Death

Episode 8 - Winter Days, Where the Heart Is

Episode 9 - The Distance Between Them

Episode 10 - The Fifth Contractor

Episode 11 - A Visitor Approaches Lightly

Episode 12 - The Final Decision

Episode 13 - Time of Departure

Episode 14 - The Princess of Colchis

Episode 15 - A Battle of Legend

Episode 16 - Winter Days, The Form Wishes Take

Episode 17 - The Dark Sword Bares Its Fangs

Episode 18 - The Beginning of the Circle

Episode 19 - Idealism's End (The Answer)

Episode 20 - Unlimited Blade Works.

Episode 21 - Answer

Episode 22 - Winter Days, A Long Way Home

Episode 23 - Incarnation

Episode 24 - Unlimited Blade Works

Episode 25 - Epilogue

ufotable

Aniplex

Aniplex of America

Notes

Studio Mausu

Fate/stay night: Unlimited Blade Works