The episode provides a detailed history of the consulting firm McKinsey & Company, exploring its origins, its rise to prominence in American business, and its social impact. The book traces the company's journey from its founding in 1926 through the rise of key figures such as Marvin Bower and Fred Gluck, examining its role in major events such as the postwar boom, the spread of conglomerates, and the Enron scandal. The author also examines McKinsey's role in evolving management practices, shaping strategic thinking, and influencing the decisions of companies and governments around the world.