What would you do with a billion dollars? For 5-Hour Energy inventor and CEO Manoj Bhargava, the answer is simple: change the world. Billions in Change raises the curtain on Bhargava's 'Stage 2,' a state-of-the-art laboratory hell-bent on creating inventions that can revolutionize the world. From water purification to renewable energy, Bhargava's reach knows no bounds. Learn the story behind a man who seeks to make more than five hours of difference in all of our lives.