Episode 1

S1, E1: 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.