Walker, a Texas ranger, believes in dealing with the bad guys the old fashioned way, by fighting them. He also works on instincts. Trivette is his partner. He was a former player for the Dallas Cowboys football team. Trivette uses the modern approach to crime solving, such as computers and cellular phones. C.D Parker owns a bar and grill which specializes in Western cuisine, and Country-Western themes. He gives Walker advice on some cases. Alex Cahill is the assistant district attorney.