The Vikings were an ambitious, daring and frightening people who left an indelible mark on the British psyche. Yet archaeology has revealed very little about their time in Britain and even less about what happened to them afterwards. Archaeologist Julian Richards finds new evidence about what really happened during the dramatic period when Vikings roamed the seas around Britain. And in a ground-breaking genetics research project designed specially for the BBC series, internationally renowned geneticist, Professor David Goldstein, sets out to answer some of the most intriguing questions about the Vikings. Samples taken from around 2,000 people in Britain, Ireland, Scandinavia and Northern Europe have been processed and the results are revealed during the series.