As Bastian Balthazar Bux embarks on a journey to overcome his fear of heights and join the school swimming team, his connection to an ancient bookstore filled with mystical tomes reignites his affinity for the Neverending Story. It is in this enchanted place that he hears the Childlike Empress calling for help, her ethereal voice echoing through the pages of the book.
One fateful day, when Bastian takes the book home, the AURYN amulet mysteriously detaches from its cover, drawing him into the vibrant world of Fantasia. Here, he encounters Nimbly, a bird-like creature shrouded in mystery, and reunites with Atreyu, a steadfast friend in the stunning Silver City. As they traverse the city's breathtaking architecture, they narrowly escape from mighty armored giants, behemoths controlled by a dark force called the "Emptiness." This malevolent power has been unleashed by Xayide, a wicked sorceress intent on seizing control of Fantasia.
In his quest to thwart Xayide's sinister ambitions, Bastian faces the menacing Tri-Face, an inventor who creates a device that systematically erases Bastian's memories every time he uses the AURYN amulet for a wish. Meanwhile, Nimbly, appearing to serve Bastian, secretly entices him to make reckless wishes that jeopardize his mission.
As Bastian and Atreyu continue their treacherous adventure to locate the Childlike Empress, they confront Xayide, who initially seems to abandon her quest for power. Yet soon, she manipulates Bastian, instilling doubt about his friends' loyalty and persuading him to make irrational wishes. During this time, Atreyu grows increasingly troubled by their wandering without purpose.
Back in the real world, Bastian's father, Barney, begins to worry as he discovers his son's disappearance. Upon finding the Neverending Story in Bastian's room, he is led to Carl Conrad Coreander's bookstore. In a rush, he confronts Mr. Coreander, only to find the shop abandoned. Later, accompanied by a police officer, he returns to the bookstore and discovers that the book is capturing Bastian's adventures in Fantasia, with his own name written within its narrative.
As Atreyu's resolve against Xayide solidifies, Bastian doubts his friend's loyalty, climaxing in a heart-wrenching confrontation that leads to Atreyu's tragic fall. Despairing, Bastian turns to Xayide, only to uncover the critical truth: he has only two memories left—those of his beloved parents.
With unwavering determination, Bastian returns to the desolate Silver City and utilizes the power of his fading memory of his mother to resurrect Atreyu. However, Xayide pressures Bastian to use his final wish to return home. Instead, he compassionately wishes for her to possess a heart. This act of kindness transforms Xayide, dispelling the Emptiness that fueled her darkness and granting her profound emotional depth.
As Fantasia comes back to life, Bastian's memories are restored, leading him to the Childlike Empress, who expresses heartfelt gratitude for his bravery. In a touching act of trust, Bastian offers her the sacred AURYN amulet, which guides him to the path of reconciliation with his father. This journey culminates at a towering cliff above a magnificent waterfall, pivotal for Bastian to confront his fear of heights.
With the encouragement of Barney and Atreyu, Bastian takes a courageous leap off the cliff, landing safely on the other side. As he reunites with his father, the AURYN amulet returns to the book's cover, signaling the end of its magical influence.
