In the south of England road builders dig foundations for a new highway. Cutting through the chalk the excavator makes a shocking discovery. In a shallow grave is a tangled mass of headless skeletons, and to one side a pile of severed skulls. Who are these victims? Why were they killed? 'Viking Apocalypse' pieces together the events that led up to this massacre revealing secrets of the Scandinavian warriors who once brought terror to Britain. Cutting edge forensics together with ancient texts and heroic sagas tell a story of greed, betrayal and retribution, bringing the Vikings back from the dead.