The chance discovery of a gold-filled Anglo-Saxon royal tomb at Prittlewell, Essex, went global. Comedian Clive Anderson and anthropologist Mary-Ann Ochota ask: who was this this ancient royal? It was supposed to be a routine excavation of a small traffic island in Essex, but it turned into a remarkable archaeological find. The 2003 discovery of an ancient pagan burial chamber revealed a treasure trove of artifacts from the Dark Ages and one shocker: gold foil crosses that predate the arrival of Christianity to the region by nearly 20 years. Was this the tomb of a trailblazer for the religion that would dominate Britain for the next 1,400 years? And if so, what did it mean for the Anglo-Saxon gods that dominated the landscape?

The U.K. was a hotspot for human sacrifice about 2,000 years ago, and it apparently went beyond simple ritualistic killings. There was cannibalism as well. What was going on during Britain's Iron Age and what drove its people to commit such barbaric executions? Follow hosts Clive Anderson and Mary-Ann Ochota as they travel from the hill forts of Maiden Castle to a cave in South Gloucestershire to uncover the reasons behind these gruesome rituals, to detail the various methods of murder, and to reveal who these unfortunate victims were. Visit seaside caves, grassy castles, and a Lego Iron Age village as we hunt down evidence of human sacrifice in Britain.