This study evaluates a manualized cognitive behavioral therapy (CBT) program used with probationers in one Midwestern jurisdiction. The program was adopted to address two important challenges specific to the jurisdiction. First, the manualized course was chosen in order to provide cognitive behavioral therapy in a setting which has a very low population density making group CBT unfeasible. Second, there was an expectation that the narrative format of the manualized course would resonate with the large Native American client pool in the area. Most data were collected for standard record keeping purposes. Criminal thinking was measured using the Texas Christian University Criminal Thinking Scales (TCU-CTS) and offender behavior was measured in four ways: offender non-compliance, new arrests, revocations, and positive drug tests. Records were analyzed for 346 individuals who were on probation on January 1, 2006 or later (treatment group n = 89; dropout group n = 12; no treatment group n = 245). Results provide reason for optimism regarding program effectiveness and direction for future research.