The Secret of El Dorado. The legend of a lost kingdom of gold, lying hidden in the Amazon jungle, sparked one of the most famous wild-goose chases in history. But recent archaeological investigations have revealed traces of a society - as advanced as that of the Egyptians or the Incas - in the very heart of the rainforest. This civilisation possessed a secret with the power to transform theirworld; a secret that some believe could be used to transform ours.
Producer David Sington ; Executive producer Matthew Barrett