Alex and his Dad enjoy a night at Freddy's. Alex notices a mysterious door. The animatronics glitch, and Alex sneaks backstage. He and Bob, a technician, face malfunctioning, aggressive robots that capture them.
Bonnie and Foxy, now animatronics, uncover a plot by owner Mr. Smith to replace them with advanced models. Teaming up, they thwart his plan, restore order to Freddy's Pizza Place, and embrace their roles as its protectors.
The animatronics sense a looming threat as strange events hint at sabotage. They discover a figure manipulating their system and set out to uncover the source and protect their home.
As the animatronics begin to question who they really are. With two employees gone missing and memories they can't explain, Freddy, Chica and Foxy confront The Creator for answers.
The animatronics uncover a mysterious note in the basement, urging them to visit an abandoned factory for answers. Just as they plan their next move, the pizzeria erupts in flames, forcing them to escape.