Our planet is changing faster than evolution can keep up. The earth has been brought to the brink by a greed-based predatory economic system that chews up anything in its path and spits it out to the bitter end. Environmental journalists Jeffrey St. Clair and Joshua Frank take you on a sobering field trip through the danger zones as The Big Heat charts the battle lines for the future of the planet, from corporate villains to corrupt politicians and the fearless environmentalists who are standing up against the pillaging. This is an unflinching chronicle of the last fight that really matters.