William Afton, the owner of Freddy Fazbear's Pizza, is revealed to be the killer of the five children who haunt the animatronics.
Afton is killed by the springlocks in his Spring Bonnie suit, but his soul remains trapped inside.
The animatronics are possessed by the ghosts of the murdered children, who seek revenge on Afton.
Mike Schmidt, the security guard from the first game, is revealed to be Afton's son.
Mike is trapped in a nightmare loop where he is constantly haunted by the animatronics.
Afton tries to possess Mike, but is thwarted by the spirits of the children.
The spirits of the children finally free themselves from the animatronics and move on to the afterlife.
Mike wakes up from his nightmare and escapes from Freddy Fazbear's Pizza.