Dr. Leslie Dewan and her team at the start-up Transatomic are designing a nuclear reactor that can produce much more electricity than a conventional reactor, while creating much less nuclear waste. To implement their vision, they’ll need to take on a deeply entrenched energy industry, and convince a cautious public that Transatomic can safely harness the most powerful energy in the world.

FastCompany is proud to present Episode 3 of our new series Challengers, an original series partnership with Freethink that showcases innovative entrepreneurs across the globe who are racing to develop new businesses that could dramatically improve people’s lives.

Join us as each Monday for the next few weeks as we profile the next generation of challenger companies and get an intimate view of where they are on their journey to transform entire industries—to change the world.