One of our biggest music stars Gary Barlow faces his toughest gig when he heads to the harsh terrain of Afghanistan to perform an exclusive concert for British troops. The morale-boosting visit sees the X Factor judge spend two days with soldiers, sailors and airmen, both Regular and Reservist, experiencing life on the base and culminating in a one-off performance in front of around 1,000 troops. Travelling around 4,000 miles to Camp Bastion in Helmand Province, our cameras are granted exclusive access to follow the superstar as he gains an invaluable insight into life in camp for these extraordinary servicemen and women.