In this episode of American Dynasties, we pick up where we left off—at the height of Standard Oil’s power. John D. Rockefeller’s empire controlled more than 90% of the U.S. oil market, but cracks were beginning to show.

We’ll follow the rise of investigative journalist Ida Tarbell, whose groundbreaking exposé revealed the hidden tactics behind Standard Oil’s success. We’ll explore the wave of public outrage her work ignited, the legal battles that reached all the way to the Supreme Court, and the landmark 1911 decision that shattered Rockefeller’s monopoly.

This is the story of how one man’s business brilliance collided with the growing demand for fairness in the American marketplace—and how the fall of Standard Oil forever changed the way America does business.