Medal of Honor Recipient George Sakato said with tear, ' I am not a hero. I just killed a lot of people. It's not good. This medal is for the people who couldn't return their homes, not for me.' Even many soldiers who received the decoration still have deep scars in their hearts now. He is the veteran of 442nd Regimental Combat Team in WW2 composed of Japanese Americans, who were at first seen as the problem because of their race, but later seen as problem solvers because of their splendid achievements on the battle field. They had to fight not only the enemy but also prejudice. This is the story of the 442nd and their veterans now and then.

When the US Army realized its deficiencies in intelligence operations against Japan in WWII, Japanese Americans were secretly trained to be soldiers of the Military Intelligence Service. They showed their patriotism to US, the nation that had caged their families in the internment camps by choosing to fight against the same race. Not only had they tremendously contributed to America's victory, but also to the successful recovery of Japan using their skill in language. However, the US government had kept their existence as a top secret. Who were these soldiers whom called the Human Secret Weapon?