Ariane takes Nino back to the Middle Ages to find out what started the Crusades—and why there were so many of them. They travel to Jerusalem (where it all started) and they meet kings and popes and emperors and sultans... including Richard the Lionheart and his famous adversary Saladin. Along the way, Nino discovers that the Crusades weren't just about religion and the Holy Wars weren't just Christians vs. Muslims. Like most of history, it was a little more complicated than that, as Ariane explains...