'Complex System Theory' is about a system where many interacting components generate a complex phenomenon. Scientists, Entrepreneurs, Economists, Environmentalists, Health Experts, and Historians are studying the theory in the Santa Fe Institute in the middle of the New Mexican desert to find a new approach that no other theories or paradigms have dealt with. Before the outbreak of COVID19, these 20 world's leading experts gathered here for 10 days and shared their expertise to find solutions for the complex problems the human race is facing. Their research and discussions on environmental issues soon sprawled across economic imbalances, labor-capital shift, and all the political, economic, educational, and digital technology issues under Neoliberalism. This film goes into details of the experts' activities in the Santa Fe Institute and presents a whole new vision and paradigm 'that can save the Earth' with insight.