From the first molecule in the universe to the water we drink, from plastics, glass, and rust to the molecules that could end the COVID-19 pandemic, Caitlin and Arlo venture into the molecular stories underpinning our natural world. The duo meets with a diverse set of experts to discover how, if you look close enough, what may seem familiar can be extraordinary, and the chemistry in the world around us is just as exhilarating as any trip across the globe.