Robert E. Peary expected glowing accolades and worldwide fame for being first at the North Pole. But a New York physician named Frederick Cook said he had been first. Peary sensed his glory being snatched from his grasp—and mounted a relentless campaign in the press to prove his claim. And Henson? He supported his longtime expedition leader—though Peary didn’t return the favor. He had no more use for his loyal assistant after they returned from the Arctic for the last time. In this episode, we unravel Peary’s and Cook’s controversial claims and recognize Henson as one of history’s most important and innovative polar explorers.