Coco, Mari and Helena are The Sweethearts, a manufactured girl band who are rarely off the front page of the tabloids. In need of some positive publicity, they travel to Afghanistan to do a special gig for the troops at Camp Bastion before the base is handed over to Afghan officials. A group of battle weary soldiers, chosen to protect these three beautiful celebrities, eagerly await their arrival. But when there's an attack on the base, The Sweethearts and the soldiers are thrown together and forced to wait it out in very close quarters...