Dr Xand van Tulleken and Raksha Dave explore the bitter feud between the weak King Ethelred and his treacherous son Edmund; the pair chart the progress of the Vikings' bloody onslaught as they march across England.

The Vikings make brutal progress as they successfully take control of much of England. Dr Xand van Tulleken and Raksha Dave delve into the fragile alliances and devastating betrayals of the period.