This article describes the Summer Institute in Global Mental Health and Psychosocial Support, a brief immersion training program for mental health, health, and allied professionals who work with populations that have endured severe adversities and trauma, such as domestic and political violence, extreme poverty, armed conflict, epidemics, and natural disasters. The course taught participants to apply collaborative and contextually sensitive approaches to enhance social connectedness and resilience in families, communities, and organizations. This article presents core training principles and vignettes which illustrate how those engaging in such interventions must: (1) work in the context of a strong and supportive organization; (2) appreciate the complexity of the systems with which they are engaging; and (3) be open to the possibilities for healing and transformation. The program utilized a combination of didactic presentations, hands-on interactive exercises, case studies, and experiential approaches to organizational team building and staff stress management.