Searching for traces of a mysterious age. Could a sword with magical powers really have existed? Was there really a camelot? Who was King Arthur and the knights of the round table? Where was the legendary grail castle located? The castle which housed the most sacred relic in Christendom: the holy grail? Our journey begins in the mountains of southwestern Germany, where archaeologists have discovered the grave of a celtic prince. The man was buried over 2500 years ago. Along with his body they found a valuable bronze vessel. The first step in the journey for the holy grail brings us into the mysterious world of the celts. They came to europe from the east. With them they brought their culture, rituals and tradition. They brought iron, more durable then bronze. In celtic times it was traditional to bury a prince with his belongings. His belongings were a gift to the gods, they cast swords into lakes. The celts believed in resurrection of the dead. A relief on a bronze vessel from the 1st century BC shows a prince placing dead warriors into huge drinking vessels to bring them back to life. Celts believed in magic vessels and drinking from magic vessels produced magical results. This tradition has continued in the holy grail a vessel that produced salvation. This documentary argues the celtic magic vessel as the origin of the medieval holy grail story.