The team investigates a fatal shooting. An elderly woman emerges as the shooter. Meanwhile, Leon's final hours tick away to his execution. And Grace connects with a woman who may also be receiving visits from Earl. Also: Ham's divorce is finalized.

The romance between Doug and Maggie flowers so much that the couple sets a wedding date---but the big day is jeopardized when Maggie is attacked by a mysterious predator. Meanwhile, Leon's execution date draws near as Johnny and Rhetta passionately try to save him via a petition. And young Clay continues bonding with Leon's son.

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.

The team investigates the death of a woman, but Grace is lured to the prime suspect, a high-profile architect with an unconventional sex life. Meanwhile, Ham partners with Grace again, hoping the union will rekindle their twisty romance. In other developments, Bobby's undercover undertaking reaches an explosive conclusion, and Clay forms a bond with a youngster.

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.

When a drug-riddled party turns deadly, numerous teen partygoers land in trouble---including Grace's niece. As the team hunts for the drug pusher, Grace's temporary partner tries to prove her worth by scoring important leads in the case.

The squad is hunting down an apparent serial killer. Grace must work with a new partner, Abby Charles, a uniform policewoman and single mother. Elsewhere, Leon's execution date looms large, as the angelic Earl prompts Grace to help the prisoner.

The team searches for the identity and killer of a young Latina who was dropped at a hospital by a white supremacist, and Ham spins out of control.

Grace and her team investigate the savage slaying of a woman and the abduction of her son. Surfacing as a suspect: the boy's father, whom Grace desperately tracks. Elsewhere, Ham continues to cope with a shattering personal loss.

When thousands of dollars are found hidden in Grace's Porsche, the ensuing investigation swirls around a moneyed developer, a slain highway patrolman, and inquiries into previous owners---one of whom is noted football coach Barry Switzer. Meanwhile, the entire squad is emotionally impacted by news that Ham's brother has vanished in Afghanistan.

When a mother of two vanishes, clues point to a teen girl and her druggie boyfriend as suspects. Elsewhere, Grace's young nephew joins a police program and corners Ham about his romantic dalliances with Grace; and Butch is hounded by a possible stalker who is connected to the department.

A member of the squad is found murdered at a joint frequented by policemen, and the case turns more complex in light of a bizarre confession. Meanwhile, Ham's brother anticipates leaving for war; and Grace and Leon share odd dreams about one another.

Grace investigates the vanishing of a troubled young man who shares a past tragedy with her: His father---like Grace's sister---was killed in the bombing of the Alfred P. Murrah Federal Building in Oklahoma City. Meanwhile, Ham separates from his wife, which only affords him more time for sex-tracurricular activities with Grace.

Grace gets busy on her day off: She works to unlock the secrets of her haunted past, but instead ends up apprehending a criminal on the FBI's Most Wanted list, an act that brings her praise and hero status.