Amid the certainty that the Earth will eventually run out of petroleum, a single individual developed the substance known as 'B100 Biodiesel': an environmentally-sound and cost-efficient substitute for conventional oil, produced from animal tallow. In so doing, this entrepreneur-cum-inventor set in motion plans to process and manufacture a substance that could well nigh save the entire global economy, by virtue of constituting renewable fuel - and triggered a domino effect that began to reshape contemporary geopolitical thought. Stephen B. Strout's documentary Revolution Green investigates the impact of this development and the man responsible for making it happen, as it raises key questions about the importance of renewable energy sources in the current economic climate. ~ Nathan Southern, Rovi