Disastrous hurricanes. Widespread droughts and wildfires. Pervasive heat. And extreme rainfall. It is hard not to conclude that something's up with the weather. And many scientists agree this trend in our weather is not just a coincidence. It's the result of the weather machine itself - our climate - changing, becoming hotter, more erratic. Climate change is arguably the defining challenge of our time, yet widespread misunderstanding and misinformation has hampered the public's ability to understand the science and address the issue. NOVA will cut through the confusion and help define the way forward. Why do scientists overwhelmingly agree that our climate is changing, and that human activity is causing it? How will it affect us through the weather we experience, and when? And what will it take to bend the trajectory of planetary warming toward more benign outcomes? Join scientists around the globe on a quest to better understand the workings of the weather and climate machine we call Earth, and discover how they are finding that we can be resilient - even thrive - in the face of enormous change.