Lebanon is a middle-income country that has been recently crippled by several tragedies including the economic collapse, COVID-19, and the fourth of August Beirut port explosion, the world's most powerful non-nuclear explosion of the twenty-first century. Recent data on mental health from Lebanon is summarised, and other topics such as the psychological impact of cumulative adversities and the role of international support in Lebanon are examined. Data from Lebanon shows severe levels of distress among the people, in a country with minimal resources. Given current adversities in Lebanon, recent data in the country, and the literature on adversity and mental health outcomes of man-made disasters, Lebanon is most likely going to face an epidemic in poor mental health. A call is made for the wider scientific community and international organizations to support the mental health field in the country and help prevent further negative mental health outcomes. Understanding how to better navigate mental health in places with extreme adversity and emergencies can be beneficial to other communities which might face similar challenges.