Benton Fraser comes to Chicago in an attempt to find out who killed his father. After solving the murder, he decides to stick around and work for the local Canadian consulate. He has made friends with a local detective, Ray Vecchio, whose sister, Francesca, has a major crush on him. Although Vecchio is often confused by Benton's strange way of doing things and Benton is often confused by how things are done south of the border, the two get along famously.

The story of an inner-city Los Angeles police precinct where some of the cops aren't above breaking the rules or working against their associates to both keep the streets safe and their self-interests intact.