Fate/Zero

Seven mages summon legendary Heroes to compete in a deadly battle for the power of the Holy Grail, a relic said to grant miracles. As participants are selected worldwide, the story begins eight years prior in Germany, where Illyasviel is born at Einzbern Castle, her father Kiritsugu Emiya aware that he, too, will play a role in the impending conflict.

Kiritsugu and Illyasviel take a walk through the Einzbern forest, prompting Saber to reflect on Kiritsugu's distant behavior since her summoning. Meanwhile, in Fuyuki City, the seventh and final participant of the Holy Grail War is summoned.

The servants gather in Fuyuki City, setting the stage for a tense struggle as rival magi and their masters prepare for battle. Each side remains cautious, waiting for the first move in what promises to be a high-stakes conflict.

Saber and Lancer's duel continues as Kiri and Maiya investigate the identity of Lancer's master, leading to a startling revelation.

As the battle between Rider and Lancer reaches its peak, Saber is surprised by Rider's unexpected arrival. Rider addresses the crowd of onlookers hidden in the shadows, though it becomes clear he is not the only heroic spirit to have been drawn to the confrontation.

Irisviel joyfully drives through Fuyuki City at night with Saber, who is uneasy about the experience. Their ride is interrupted by a mysterious figure who approaches the car, claiming to be Saber's loyal retainer, though Saber has no recollection of them.

The Masters are given the opportunity to gain an additional command spell by locating and defeating Castor.

Multiple conflicts unfold at Einzbern Castle as Kayneth and Kiritsugu clash in a battle of magic and firearms. Meanwhile, Saber and Lancer team up to confront Caster in the surrounding forest. As Irisviel and Maiya attempt to flee, Irisviel senses an approaching new threat.

Kiritsugu and the others are dealing with the aftermath of the assault on their castle when the Einzbern Master chooses to bypass Saber's plan to confront Caster and instead heads alone to confront Kayneth. Meanwhile, Kayneth, having been rescued by Lancer, awakens to find himself injured and restrained in a bed, where Sola-Ui delivers a grim assessment of his situation and presents him with an unexpected offer.

The mystery of the mass kidnappings in Fuyuki continues as more children vanish each day. Concerned about her missing friend Kotone, Tohsaka Rin enters the dangerous city to search for her and encounters a mysterious man leading two children, prompting her to follow him.

Rider, Saber, and Archer gather for a conversation about the nature of kingship, reflecting on leadership and power. Their discussion takes a darker turn when Assassin unexpectedly appears and escalates the situation with threats of violence.

Kiritsugu hides in a Fuyuki hotel, struggling to devise a plan and comprehend Kirei's intentions. Meanwhile, Iry and Saber take refuge in a traditional Japanese manor, where Iry is enthusiastic about their new location, though Saber suspects something is wrong.

Rider and Waver visit a bookstore during a trip into town, where Waver discovers new insights into Rider's ambitions through a biography. Meanwhile, Caster and Ryuunosuke return to their ruined base, and after a conversation with his Master, Caster begins preparing a dangerous spell driven by his growing madness.

The Heroes struggle to contain Caster as they lack a means to stop him. Toki urges Archer to deploy his Noble Phantasm to destroy the monster, while Kiri seeks to eliminate the source of its power.

Rider attempts to contain Caster by transferring her into his Reality Marble, giving the team temporary respite. With help from a surprise call from Kiritsugu, the other servants work to devise a strategy, culminating in Lancer facing a morally complex decision.

After a grueling victory over Caster, the exhausted Heroes face one last confrontation as Saber challenges Lancer to a duel rooted in knightly honor. However, Kiri prioritizes victory above all else and demonstrates his ruthless determination to win at any cost.

As the tournament faces rule violations and new competitors, the remaining Heroes and Masters prepare for an evolving stage. Tokiomi's next move is poised to have significant consequences for all involved.

Kiritsugu spent his childhood on a secluded island with his father, Nori, a mage who cultivated magical flowers that drew the interest of a local girl.

Natalia has been raising Kiritsugu since saving him from a mysterious island, guiding him through the world of assassination. Their bond has deepened over time, resembling that of a mother and son, but Kiritsugu's next actions will test the limits of their relationship.

Irisviel's condition worsens, and Kiritsugu does his best to care for her while continuing his mission. As he prepares to take down his next target, his hideout is attacked, resulting in a significant loss and emotional distress.

Saber pursues Rider with enthusiasm, while Kiritsugu investigates a separate lead. Meanwhile, Matou Kariya observes quietly as his own plans begin to unfold.

As the battle nears its conclusion, the dynamics between Masters and Servants begin to shift. With many players eliminated, a particularly significant one is on the verge of being the next to exit the field.

Saber faces off against Berserker while Archer battles Rider, leading to a dramatic turn where one of the heroes is defeated and a hidden secret comes to light.

Two champions, each guided by their own mentor, compete for a single grail in a decisive contest.

Saber activates her Noble Phantasm against the Holy Grail as ordered by Kiritsugu, leading to an unforeseen outcome that shifts the balance of the Holy Grail War. The fates of the remaining participants hang in the balance as the conflict reaches a critical turning point.