In this three-part drama documentary series, Dan Snow explores the political intrigues and family betrayals between Vikings, Anglo-Saxons and Normans that led to war and the Battle of Hastings.

When King Edward the Confessor dies without an heir, it triggers a bitter race to succeed him as King of England. Earl Harold is on the spot and takes the crown. But in Normandy, Duke William believes the throne has been promised to him and decides to invade. Meanwhile, in Norway, the Viking king Harald Hardrada also fancies himself as King of England, and he too puts together an invasion force. Very soon, England will be under attack. Show less