This is a dazzling, blow-by-blow chronicle of the most consequential scientific breakthrough of our time - the COVID-19 vaccine. It’s a story of courage, genius, and heroism. It’s also a tale of heated rivalries, unbridled ambitions, crippling insecurities, and unexpected drama. Gregory Zuckerman takes us inside the top-secret laboratories, corporate clashes, and high-stakes government negotiations that led to effective shots. He recounts the lives of brilliant researchers, but he gives equal space to drug companies, both established (Merck, Pfizer) and fairly new (Moderna, Novavax). It is the story of how science saved the world.