Viking God

The Norwegian explorer, Thor Heyerdahl, is on the trail of another legend - the Viking God Odin. He believes Odin may have existed as a real king in the 1st century BC in what is now southern Russia. Thor Heyerdahl is best-known for his Kon Tiki expedition of 1947, when he sailed from Peru to Polynesia. Now he is on an archeological dig near the Sea of Azov, to discover whether any links can be found with Odin and his tribe. The BBC's Caroline Wyatt reports.