Adam Hart-Davies profiles the 10 most important treasures ever unearthed in Britain as voted by a panel of experts from the British Museum.

Richards investigates the remains of the soldiers of Napoleon's army, discovered in a mass grave near Vilnius provide a new perspective on the final days of the dictator's military forces as they attempted to conquer Russia in 1812. Modern technology reveals the varied nationalities of many of the fallen soldiers, while lavish reconstructions of the final battles illustrate one of the greatest disasters in military history.

A British team travel deep into the inhospitable Sahara desert to find out what remains of a Hermes airliner forced to crash-land in May 1952, when it ran out of fuel 1,300 miles off course. Using official documents and testimony from the surviving crew and passengers, the final hours of the doomed plane are pieced together.

Richards investigates a grave found a few miles from Stonehenge on Salisbury Plain, believed to be the richest Bronze Age burial ever found, owing to the quantity of riches with which the man was buried. The team attempt to find more clues to his identity, and with the haul including the earliest metal objects found in Britain, piece together clues about life for people so far back in time.

Richards uncovers the mysteries of the recently-discovered missing city of Calleva Atrebatum in Hampshire. All that now remains of it is a wall enclosing 100 hectares of empty fields, but with advanced computer graphics to fill in the gaps, the programme rebuilds Calleva, asking why it was abandoned. Supported by current findings, it proves that in its time, Calleva was a city of significance and then goes in search of the reasons for its ultimate demise.

Richards joins archaeologist Clive Waddington and his team as they unearth evidence of Stone Age communities dating back 10,000 years. Advanced dating techniques and analysis build up a picture of what life was like in 8600 BC, revealing that the people of the time were sophisticated settlers with a system of beliefs and the ability to exploit the landscape to suit their own needs.