Watch HDToday. An illiterate mountain man, Kit Carson was fluent in Spanish and five Indian languages; he twice married Native American women, yet led a brutal war against the Navajo. When the West was a mystery to most Americans, Carson mastered it, and his expertise made him not only famous, but also sought after. Eventually, by helping to spur a migration that would change the West forever, he unwittingly became an agent in the destruction of the life he loved.