An unsettling discovery at a state penitentiary causes Henry Deaver to return to his hometown of Castle Rock, a return that brings his mysterious and traumatizing past to the surface.
As Henry tries to investigate the events at Shawshank Prison, he is faced with a horrifying accusation. A connection is revealed between the former warden and The Kid, who starts to frighten those around him.
Henry's presence forces Molly Strand to reflect on her past actions. Zalewski asks Henry to become The Kid's lawyer. The fate of Henry's father is revealed.
Henry struggles with memories of the day he went missing. Zalewski has a deadly meltdown after he learns of Henry's decision in The Kid's case.
As strange occurrences involving his father's coffin burdens Henry, he tries to help The Kid in the wake of his release. The Kid's presence continues to plague unsuspecting people as it unknowingly forces them into disruptive behavior.
Henry tries to discern the truth about what his father did to him, leading to a dangerous predicament. Alan and The Kid join forces to help Ruth.
With Ruth Deaver's memories deteriorating, she sends Wendell away to protect him from the secrets that inhabit Castle Rock. But her attempt to escape from The Kid brings down a familiar face instead.
As Molly frees Henry, he confronts The Kid on the fact that he hasn't aged in 27 years. Two murderous strangers get entangled in the happenings at Castle Rock.
A truth beyond comprehension comes to light. The Kid reveals his true identity, which ends up hitting too close to home for both Molly and Henry.
The Kid reveals why his presence causes devastating disturbance to those around him. Henry recalls what happened with his father in 1991.