Professor Robert Bartlett explores the impact of the Normans on southern Europe and the Middle East. The Normans spread south in the 11th century, winning control of southern Italy and the island of Sicily. There they created their most prosperous kingdom, where Christianity and Islam co-existed in relative harmony and mutual tolerance. It became a great centre of medieval culture and learning. But events in the Middle East provoked the more aggressive side of the Norman character. In 1095, the Normans enthusiastically answered the Pope's call for holy war against Islam and joined the first crusade. They lay siege to Jerusalem and eventually helped win back the holy city from the muslims. This bloody conquest left a deep rift between Christianity and Islam which is still being felt to this day.
In the dying days of World War II, a secret organisation of Holocaust survivors plans a terrible revenge. Six million Jews are dead but, by 1946, just a handful of Nazis face trial. Most of the guilty will never face justice. For many of Hitler's victims, this is not enough. Based on previously unheard recordings and exclusive interviews with those involved - all of whom are over 90 - this documentary tells the story of a remarkable secret group known as The Avengers, who decide to take matters into their own hands. Assembled by the warrior-poet Abba Kovner, their aim is 'an eye for an eye, a tooth for a tooth, a life for a life.' Their plan: to murder six million Germans by infiltrating German cities and poisoning the water supply.