This article contributes to our knowledge of endangered language revitalization by offering a case study of a Cherokee Nation (CN) preschool immersion program named Tsalagi Ageyui, "Our Beloved Cherokee." A naturalistic inquiry into the micro-and macrosociocultural dimensions of reversing Cherokee language shift reveals that, of all CN language programs, Tsalagi Ageyui holds the greatest potential to increase intergenerational, mother-tongue transmission in the home, family, neighborhood, and community. [Cherokee language, language immersion, reversing language shift, naturalistic inquiry]