After being taught in a boarding school run by whites that Navajo is a useless language, Ned Begay and other Navajo men are recruited by the Marines to become Code Talkers, sending messages during World War II in their native tongue.
On the Pacific front during World War II, messages were picked up by American and Japanese forces on land and at sea that were unintelligible to everyone except a small select group within the Marine Corps: the Navajo code talkers.