Harrison Ford investigates the effects of Indonesia's palm oil industry. Don Cheadle visits a Texan town that has been economically devastated by drought. Pulitzer Prize-winner Thomas Friedman examines the role of climate change in Syria's volatile state.

Harrison Ford continues his investigation into the global effects of the palm oil industry, exploring the corruption that has deforested the Indonesian landscape and created the world's largest emitter of greenhouse gases. Meanwhile, Former Governor Arnold Schwarzenegger joins an elite team of wild-land firefighters known as "Hot Shots" as they battle a new breed of forest fires made more deadly by climate change, and discovers another killer wiping out trees at an even faster rate than the fires.

In episode three, MSNBC's Chris Hayes shadows climate change skeptic, Republican Congressman Michael Grimm, for a year in Staten Island in the wake of Superstorm Sandy and questions what he might have learned about climate change in the process, and conservationist M. Sanjayan travels to the ends of the earth-including Christmas Island-to question some of the world's top climate scientists as they collect key data unlocking the past and future of our planet's changing climate.