Cory Evans is a correctional officer at a facility just outside of Sacramento. At the end of a work day, he finds a young woman in the parking lot who has missed the bus home after visiting a convict. He offers to give her a ride into Sacramento, and she lets him. He drops her off at the Greyhound station in Sacramento, but parks his car in view of the station and watches her as, five minutes later, she leaves the station on foot. He follows her to a Motel 7 several blocks away, where she disappears into one of the rooms. He thinks about the woman the rest of the night. The next day, he is called into the office of the Deputy warden. When he arrives, he finds the Deputy — a man named Duffy — as well as another man, who introduces himself as Roger Hardesty from the FBI. The two men lay out a proposition for Cory. Cory broke protocol by giving an inmate's visitor a ride, but they're willing to let his infraction slide if he does them a favor: befriend the woman, who is named Billie Sue Neeley, and try to get information from her. Hardesty and Duffy have been following Billie for a long time. The man she visits in prison is named Lester Dragg; Billie was in the car with him when they were pulled over and Lester was arrested for grand auto-theft. However, Lester is associated with a bank robbery, as well, which they couldn't indict him for but which they think Billie knows about. Cory agrees to try to get information from Billie. The next night, Cory meets Billie at a coffee shop and tells her everything: that the FBI is following her, that he's been asked to find out more about the bank robbery. They agree to play the situation out and see where it goes. The next day, Billie tells Lester at visiting hours about Cory and the FBI, and in the evening, Billie tells Cory about her meeting with Lester. Billie and Cory sleep together. At his meeting with Hardesty and Duffy the next day, Cory convinces them of his plan: to help Lester escape from prison and let him lead them right to wherever the stolen money is hidden. Then, they can apprehend Lester for bank robbery. Secretly, Hardesty and Cory agree to split the money between the two of them. Hardesty reveals that he resigned from the FBI a year ago, which Duffy is unaware of. Meanwhile, Billie purchases two handguns, one that Lester has instructed her to buy for him, and one, a secret, for herself. Lester escapes late one night and meets Billie and Cory at a rest stop. Together they drive towards where the money is hidden at a storage unit in Modesto. Hardesty and Duffy follow at a distance in their car using a GPS tracker that Hardesty and Cory installed earlier. Duffy drinks on the drive down, and when they reach the facility, he is drunk and asleep. Hardesty leaves him and sneaks into the facility behind Cory's car. He runs at Billie, Cory, and Lester, telling them he is FBI and they need to put their hands up. Lester tries to shoot him but realizes, too late, that Bille has given him an unloaded gun. Hardesty shoots and kills Lester, and then, pulling out her hidden gun, Billie shoots and kills Hardesty. Billie and Cory leave together, the money in their car. As they exit the facility, they are shot at repeatedly by Duffy, who has woken up. Cory shoots back, killing Duffy, but one of Duffy's shots hits the car's gasoline tank, and the car explodes with the money inside. Cory and Billie, both wounded, limp away from the scene as police cars scream in. They find a cemetery at the end of a nearby street and lie down. When they see police approaching them, Billie says she does not want to go on, and Cory says he doesn't either. They both raise their guns.