In the first of this two part special, Neil Oliver and Tony Pollard set out to solve one of the biggest puzzles in battlefield archaeology. 700 years ago, Robert the Bruce's overwhelming victory over the English at the Battle of Bannockburn helped seal Scotland's future as an independent kingdom. But the actual location remains a mystery. With the help of leading battlefield archaeologists, stuntmen, computer generated graphics and a good old fashioned spade - Neil and Tony go in search of both the real and imagined Battle of Bannockburn.