Immediately after the attacks on September 11, 2001, the U.S. government deployed fewer than 100 Special Forces troops to Afghanistan to initiate a secret war. Building a coalition with the rebels of the Northern Alliance, the U.S. troops managed to drive both the Taliban and Al-Qaeda out of power without the use of conventional, large-scale military operations by the end of 2001. Despite this victory, the U.S. and its allies soon become mired in a seemingly never-ending war. Produced by CNN films and directed by Greg Barker (Manhunt), this untold story features unprecedented access to the Green Berets who played pivotal roles in these covert missions. Reflecting on their experiences and on the brothers-in-arms they lost, these elite soldiers offer a riveting celebration of valour and a sobering, cautionary tale.