Without the chemistry of photosynthesis, ozone, and a molecule called Rubisco, none of us would be here. So how did we get so lucky? To find out, host David Pogue investigates the surprising molecules that allowed life on Earth to begin, and ultimately thrive. Along the way, he finds out what we're all made of--literally.

Originally released by PBS, 2021. Streaming video file encoded with permission for digital streaming by Infobase on January 20, 2021.