The code and language that the Japanese could not break in the Pacific war, nor even know its origins. How the Navajo Code Talkers came about, their training and the uses to which they were put to in the island hopping war against the Japanese. Plus the prices the Navajo paid and the long term secrecy which they were bound by. Then ultimately the long deserved recognition for their heroic efforts in helping win the war. All this is shown by archive footage and photographs, plus interviews with the people involved.