their kids wrote back. the youngest one inside, showed bravery beyond his years. >> translator: he said he is fine there. not to be so worried about him. >> reporter: the rescue operation is now under way and all his parents and the others can do is wait and hope for the best. the children's young lives in the hands of an international team of divers tasked with carrying out a rescue the world is watching. >> translator: i know they work so hard and do their best trying to take the children and coach out. >> reporter: before the operation began, we asked him what he would say to his son still sitting on a small piece of land hundreds of feet below the surface. >> translator: i will tell him that i am worried. i want him to be healthy, to get another strength to dive out safely. >> reporter: now he has that chance. in his letter to his parents, he wrote that he'd like his ung to take him for fried chicken as soon as he gets out. his dad looking at his son's picture told us, no problem,