The first Plantagenet king, Henry II, secured his throne against his four sons—a drama that tore apart the most powerful family in Western Europe and shaped the future of two nations. Through force of arms, Henry II won an empire which was then lost by his son, John. While recounting these events from over 800 years ago, Nick Barratt reveals how the root causes of Brexit can be found in King John's retreat from Europe, and the seeds of the current tensions in the Middle East were sown by Richard the Lionheart's Crusade in the Holy Land.