This article reviews the literature on interventions and services for depression and suicide prevention among adolescents, with the goals of placing this science within the context of currently changing health care environments and highlighting innovative models for improving health and mental health. We examine the challenges and opportunities offered by new initiatives and legislation designed to transform the US health and mental health care systems; summarize knowledge regarding the treatment of depression and suicidality/self-harm in adolescents; and describe innovative models for partnering with health systems and communities. This review demonstrates that treatment models and service delivery strategies are currently available for increasing evidence-based care, particularly for depression, and concludes with recommendations for future research and quality improvement initiatives aimed at inspiring additional efforts to put science to work, bridge science and community practice, and develop strategies for partnering with communities to improve care, mental health, and well-being among adolescents.