The Silver Eyes opens with a flash-forward: Charlie, the protagonist, is cornered behind arcade games as a menacing animatronic creature tears through the consoles, closing in on her with a hook. The narrative jumps back to reveal how she arrived at this moment.
Charlie, a seventeen-year-old, drives into Hurricane, Utah, for the first time in ten years, returning for a memorial ceremony honoring her childhood friend Michael Brooks, who was murdered at age seven. She visits her childhood home, maintained by her guardian, Aunt Jen. Her bedroom is preserved exactly as she left it, including the mechanical toys her father, Henry, built for her: Theodore, a purple stuffed rabbit that speaks in Henry's recorded voice; Stanley, a metal unicorn on a circular track; and Ella, a child-size doll. In the garage workshop, she recalls a twisted metal skeleton with burning silver eyes that once hung twitching in a corner. Unsettled, she flees.
At a local diner, Charlie reunites with Carlton, a childhood friend who still lives in Hurricane; Jessica, a childhood friend now in New York; and John, a budding writer and Charlie's childhood crush. Their conversation turns to Freddy Fazbear's Pizza, the restaurant Charlie's father owned. Carlton reveals the building was supposed to be demolished for a mall.
At the abandoned, half-finished mall, Jessica notices the building's dimensions suggest a hidden space inside. The group finds the original walls of Freddy's, confirming the restaurant was sealed within the mall rather than demolished. They pry open a rusted door and enter the preserved restaurant, which still has tables with party decorations, a small merry-go-round, and three life-size animatronic characters on the main stage: Bonnie the rabbit, Chica the chicken, and Freddy Fazbear the bear. A curtained area called Pirate's Cove houses Foxy, a pirate fox animatronic marked OUT OF ORDER.
The next day, the full group, now including Marla and Lamar, also childhood friends, along with Marla's eleven-year-old half brother Jason, attends Michael's scholarship ceremony. Michael's mother, Joan Brooks, acknowledges four other children also lost during the same period. Afterward, John reveals a secret he has kept for ten years: The night Michael vanished, he saw a figure in a yellow bear costume near their table, and he recalls the lifeless look in the eyes of the person inside. When the stage animatronics malfunctioned, both Michael and the yellow bear disappeared.
That evening, the group returns to Freddy's. Jessica discovers a hidden control room with security monitors beneath the stage, and Jason flips a master switch that restores power to the building. John initiates a game of hide-and-seek to lift Charlie's brooding mood. Charlie hides behind Foxy's curtain, where Foxy's arm jerks and his hook slashes her arm. The group evacuates.
The next morning, Charlie confides something she has never shared. Before Freddy's, her father ran Fredbear's Family Diner, featuring a yellowish-brown bear and a matching rabbit that could function as costumes worn by people or as coverings fitted onto robotic endoskeletons. She reveals she had a twin brother. Her father once demonstrated a spring lock, a dangerous mechanism inside the costumes that could snap shut and cause severe injury, warning the twins never to touch the devices.
John recalls a nearby town called New Harmony, and they drive there, finding the ruins of Fredbear's along old railroad tracks. Inside a costume closet, Charlie recovers a devastating memory: She and her twin were hiding among hanging costumes when a figure in the yellow rabbit suit appeared, studied them with human eyes, snatched her brother, and fled. Her parents closed the diner, her mother left, and her father never spoke the boy's name again. Charlie trained herself to forget it, but now she remembers: Sammy.
That night, the group returns to Freddy's and encounters Dave, the mall's night guard. Charlie invites him along to defuse the confrontation. Inside, Dave demonstrates suspicious familiarity with the controls, making the animatronics perform a coordinated dance. The animatronics then move erratically on their own as lights strobe and speakers blare static. Dave vanishes. In Pirate's Cove, Jason watches a yellow rabbit, distinct from the blue Bonnie onstage, seize Carlton and drag him away. The group escapes, but Carlton is missing and the entrance has been chained shut.
The group contacts Carlton's father, Clay Burke, the town's police chief. Clay dismisses the situation as a prank but reveals he worked the original disappearance cases, arrested someone he believed was guilty, and could not sustain charges because the children's bodies were never found. Charlie learns from John that some people suspected her own father, since the crimes occurred at his restaurant and his child was the first to vanish. At her father's house, she and John find a photo album confirming Sammy was real and a photograph of Henry in a yellow Freddy costume beside someone in a yellow Bonnie suit, proving a second person was involved. Marla then arrives in a panic: Jason has gone back to Freddy's.
Meanwhile, Officer Dunn enters the restaurant on Clay's orders and is ambushed and killed by the figure in the yellow rabbit suit. Clay, reviewing old case files, recognizes the night guard Dave Miller as William Afton, Henry's former partner and the man Clay arrested years ago, now returned under a false identity. The group reenters Freddy's through an alternate route to rescue Jason. Carlton, imprisoned in a back room, has been forced into a spring-lock suit by Dave, who reveals himself as Afton. Dave explains that any movement will trigger the locks, driving sharp metal into Carlton's body. Carlton hears Michael's voice from one of the empty costumes in the room.
Charlie spots Carlton on a security monitor and rushes to find him, but the control room door locks behind her, separating her from John and Jessica. She uses her knowledge of spring locks to disarm the suit and free Carlton. He tells her that Dave killed the children and stuffed their bodies into the animatronic suits. Carlton points to a yellow Freddy costume nearby, believing Michael's body is inside. Charlie knocks Dave unconscious with a pipe. The group regroups, ties Dave up, and discovers Officer Dunn's body among the costumes. Dave later escapes his bonds.
The animatronics converge on the group in the dining room. Foxy attacks Charlie in the arcade, recreating the scene from the novel's opening, and slashes her leg before John pulls her free. The four animatronics corner them when the yellow Freddy costume appears, animated by no visible mechanism. The animatronics halt. The group feels a warm presence, and Carlton names it: Michael. The spirits inhabiting the animatronics are the murdered children, who were confused and frightened rather than malicious.
Clay smashes through the restaurant wall with a sledgehammer. As the group prepares to leave, Dave, now wearing the full yellow rabbit suit, seizes Charlie by the throat. Charlie plunges her hands into the costume and triggers the spring locks, which snap into Dave's body and kill him. The animatronics silently drag his body away. The group emerges at sunrise. Clay promises to recover Officer Dunn's body and ensure the murdered children receive proper burials. Before leaving Hurricane, Charlie visits a cemetery and stands before two small headstones, implied to be her father's and Sammy's graves. She recalls sitting behind Fredbear's with her father, both laughing at a crow pecking in the dirt, a moment of connection before grief consumed their lives.