As the team probes a drug dealer's death, Ham and Butch chance upon an undercover Bobby. Meanwhile, revolving police partner Abby is rebuffed by her fellow officers, causing Grace to snoop into her past. And Rhetta works to build a clemency case for Leon, but his reaction is unexpected.

Grace gets an investigation running when a jogger with an intricate love life is murdered. Meanwhile, Clay's father begins dating the new bartender at the local joint, and Grace worries the romance will negatively impact Clay. And Leon's former high-school classmate visits him.