Episode list

Viral outbreaks can become deadly pandemics in a matter of days. To prevent catastrophe, courageous scientists are fighting back with new treatments and vaccines.

Advances in science are fusing biology and technology to make us better, stronger, faster, and smarter; manipulating our genetic code; building exoskeletons that give us super strength; giving hope to people with traumatic spine injuries.

After millennia of speculation about what goes on inside the human brain, we now have the tools to explore its hidden reaches. These tools are leading to research that may help those suffering from afflictions such as epilepsy and Alzheimer's disease. They are also shedding light on the mystery of consciousness and what makes us who we are.

In recent years, close study of the aging process has opened up new ways that could help us all live healthier for longer. Can we move beyond treating individual diseases, and instead treat the aging process itself? But would a longer life necessarily be a better life? A loose-knit group of researchers believe the real breakthrough is extending our health span - the period of life spent free of disease.

We are surrounded by clean, raw energy waiting to be tapped - energy that could eventually replace fossil fuels. Finding new ways to harness the energy around us takes a rare breed of scientist-engineers: men and women with a combination of technical skill, imagination, and unwavering focus. If we act now, developments in energy production could avert disaster and usher in a new era of clean, safe energy.

California is on the brink of an apocalypse. The state faces a future of drought that will cost billions in lost farm revenue and thousands of jobs. But the challenges facing the state are not unique: All over the world, governments are struggling with bigger populations and a diminishing supply of freshwater. Innovators across the globe are seeking solutions in emergent technologies to prevent a planet-wide water crisis.