Almost 10 years ago, former Special Forces soldier Jason Fox spent more than three years in Afghanistan. During that time he saw friends killed and seriously injured and narrowly escaped death several times. He was left with PTSD, meaning he was unable to continue the job he loved. Now he embarks on a highly personal journey back to the country, meeting old friends and former enemies to ask whether the sacrifices were worth the legacy that he, the Afghan people and many of his fellow soldiers have been left to endure.