Grace Hanadarko is an Oklahoma City police detective with an alcohol problem and a self-destructive lifestyle. After she hits a man with her car while driving drunk, she asks God for help and an angel named Earl appears. Earl wants to help …

Grace and her team investigate the murder of an oilman. Meanwhile, Ham discovers Grace's romantic past with Butch Stillwater, which puts a strain on their relationship. Grace sets out to prove her courage by challenging Earl to a wrestling …

Grace and her team investigate the murder of a manager of a sleazy local motel. The investigation eventually leads to a maid, who claims the victim was trying to rape her. Complications arise when a local priest offers her the right of sanc…

A 17-year-old devout Christian comes under attack just days before he’s scheduled to testify in a murder trial. In order to ensure his safety, Grace allows him to move in with her. But Grace can only handle so much preaching, so she ropes t…

Grace and Ham play cops and robbers with toy guns. Grace’s favorite Aunt Cathy comes to town – has a run in with Earl, clashes with Betty – and reveals some shocking news. But first-- Rhetta, Grace, and Aunt Cathy get drunk and remember old…

The death of an alleged call girl in a flight attendant’s uniform leads Grace and the guys to investigate a notorious Oklahoma crime family. Grace is finally confronted by Ham’s wife about the affair. A financially-strapped Rhetta gets exci…

Grace and the guys investigate the murder of a “crispy critter” in the Oklahoma countryside and Bobby soon discovers the deceased was one of his mentees. Grace enlists the help of her Native American grandfather, “Geepaw,” to help with the …

During the raid on a killer's house, Grace gets shot and almost dies, while another policeman isn't as lucky as her and gets shot to death. Meanwhile, Leon Cooley has to deal with his ex-wife marrying another man, who might adopt his son.

A crime from 11 years ago is on Grace's thoughts due to a new case.

3 children are killed in a bus accident and Grace's investigation is interrupted by bad weather as tornadoes rip through the city.

A home for the mentally challenged is the target area of investigation when a robbery occurs involving a man with Down Syndrome.

A defense attorney from Los Angeles comes to town for a murder trial and his presence may influence the team in professional and personal areas of their lives.

A photo of Grace's sister, Paige, is found in a burning car.