The team investigates the shooting death of a 99-year-old man---an act possibly modeled after a crime committed in Tulsa years earlier. Meanwhile, Bobby sets out to reconnect with his father; and Grace chances upon Rhetta's husband in a compromising situation.

Hushed and harbored secrets are exposed when the team explores the death of a parole officer. Meanwhile, Grace teams with her brother in a search for Earl-connected addict Neely. And serious home troubles compel Rhetta to make monumental life changes.