Based on the best-selling book series by Stephen King. Two years after retiring, former homicide detective Bill Hodges is still haunted by his last case – a massacre that left sixteen people dead. When the demented culprit begins to torment Hodges, he is compelled to revisit the case.

As Hodges struggles to maintain his sanity, both Pete and Ida take notice. Deborah worries about Brady, who gives her a window into his latest work. Hodges connects with Olivia Trelawney's sister Janey, who hires him as a private detective.

The cat and mouse game between Hodges and Brady escalates. Hodges has an upsetting conversation with Janey's mother. Deborah's drinking almost causes an accident at the Hartsfield home.

Ida is hurt as Hodges and Janey's relationship intensifies. Lou is disturbed by an interaction with a customer. Deborah takes Brady to the cemetery and the two reflect on their difficult past.

Hodges and Janey dig deeper into the circumstances surrounding Olivia's death. Hodges uses Debbie's Blue Umbrella to turns the tables on Brady. Jerome's father intervenes in his relationship with Hodges.

Hodges is rattled by the unexpected death of a hospital staff member. Jerome offers much needed help in Hodges's quest to uncover the truth. Brady works to master the limitations of his newfound ability. Already struggling to cope, Lou suffers additional setbacks.

Based on the best-selling trilogy by Stephen King. With Brady hospitalized, Hodges and Holly rebuild, opening private investigative agency Finders Keepers. Brady's care falls to Dr. Babineau, an ambitious neurosurgeon, with input from his brilliant wife, Cora.

Jerome and Holly tell Hodges their concerns about the Mercedes Killer. Tensions continue to escalate between Brady and Robi. As details about the investigation emerge, Hodges, Pete, and Izzy close in on their suspect.

As the community reels from recent news about Brady, the Mercedes Killer's future lands in the hands of the few people who have survived him.

After Hodges suffers an attack, Ida, Holly, and Jerome rally around him, but Donna is reminded of her deepest fears. As support of Babineau's treatment methods dwindle, Babineau goes over Montez's head.