Best men at each others' weddings, Princes William and Harry seemed to be brothers united - now they are divided by thousands of miles and on different paths.
Robert Lacey, author of Battle of Brothers: William, Harry and the Inside Story of a Family in Tumult, joins host Ann Gripper to discuss how it came to this.
How did their parents' divorce shape them? How were Kate and Meghan welcomed into the royal family? How have the Queen and the Palace handled things? And what impact did the structure of The Firm have on their relationship?
Reflecting on the competing tensions of love and duty, they also look ahead to potential for reconciliation.