This article reports the findings of an outcome study done at ALONGSIDE, a counseling-focused retreat center that offers three-week intensive outpatient programs for Christian leaders, the majority of whom are missionaries. Repeated measures research utilized the Outcome Questionnaire -45.2 (OQ-45.2) to explore whether or not clients participating in the three-week intensive outpatient program realized significant clinical progress and whether or not therapeutic gains were retained after the conclusion of the program. Missionaries and other Christian leaders took the inventory online a month before coming to ALONGSIDE, upon arrival, at the end of the three-week program, and three months after the program concluded. The results indicated that a month of time before arrival did not bring about a significant reduction in symptomatology among the 191 subjects, but three weeks of ALONGSIDE's intensive outpatient program resulted in significant clinical improvement which remained when the inventory was taken again three months post-program. This suggests that in a fairly short period of time, an intensive outpatient program consisting of psycho-education, group psychotherapy, and individual and/or marital counseling within a milieu of intentional Christian community can be a highly effective model for promoting enduring psychological healing. ********** When missionaries return Stateside to seek psychological treatment, they often go to centers specializing in offering treatment to missionaries. Several of these centers utilize some form of an intensive outpatient program (IOP). This can be an attractive option because of the relatively short timeframe that might be needed, thus taking missionaries away from their homes, their ministries--their very lives!--for a shorter period of time. Additionally, because these centers usually offer lodging--a great convenience when the missionary does not have a home readily available on short notice--going to such a center is sometimes the preferred approach to treatment for important logistical reasons. In any case, whether or not participation in an IOP is intentionally chosen, a substantial number of missionaries who return to the United States seeking psychological treatment go to specialized centers that do in fact utilize some form of an IOP. Three centers for missionaries that utilize an IOP (Link Care Center, Heartstream Resources, and ALONGSIDE) combined treat upwards of 200 missionaries a year. Therefore, it is important to establish whether or not IOP treatment is effective for a missionary population. There is great variability among programs claiming IOP status in terms of the number of hours a week and the number of weeks involved in the treatment program. The range includes from two to four hours a day, from three to five days a week, and from one week to many months. Some IOPs have beginning and end dates during which clients go through the IOP as a cohort group; others have an ongoing IOP which clients enter and exit as deemed appropriate with no stipulated length of stay. In general, intensive outpatient programs are most commonly associated with treating chemical dependency or eating disorders. Little research is available on IOPs with a more general psychiatric population. However, Wise (2003a) validated the efficacy of an IOP in a private-practice setting and specifically demonstrated the efficacy of using an IOP model to treat depression (Wise, 2005). He found the IOP to be "more effective than psychotherapy in clinically representative studies, randomized clinical trials, and controlled clinical trials as well as comparable to many widely used medical interventions" (Wise, 2003b, p. 203). In light of the high level of effectiveness that he found using an IOP, Wise (2003b) lamented the general underutilization of this model. It is encouraging, therefore, to note that the IOP model is not uncommonly used with missionaries who seek psychological treatment. …