This article describes the application of cognitive behavioral therapy in the treatment of a 20-year-old White male manifesting an adjustment disorder with anxiety, who initially presented on September 11, 2001, following the terrorist attacks. The initial treatment regime lasted 8 weeks. In addition, follow-up sessions at 6, 11, and 12 months were conducted. A combination of 4 cognitive behavioral therapy techniques, including cognitive impulse control, challenging irrational beliefs, stress management skills, and relaxation training, was applied. To determine treatment efficacy, the Outcome Questionnaire-45 (Lambert & Burlingame, 1996) was administered 6 times in a pre-, during, and posttreatment fashion. Treatment results suggest that this combination of techniques was effective in reducing the client's anxiety and increasing his functioning.