The Scots have a reputation as brave, ferocious warriors. Despite a troubled history with England, history shows that more of Scotland's young men sign up to fight for the crown than anywhere else in Britain.
Rory Bremner, whose own father and great grandfather were distinguished Scottish soldiers, sets out to discover why rebel clansmen became loyal servants of the military establishment.
His story takes him to Culloden, Crimea and northern France. As the sound of the pipes floats over Scottish military camps in Afghanistan he asks if, after 250 years, the Scottish soldier's loyalty to Queen and country is running out?