Kalleum McKenzie arrives in the USA at the beginning of the Civil War. He fights for the Army of the United States as a Cavalryman. He has come to start a new life. He travels west to begin that life. He befriends a rancher in a battle to regain his ranch. Mac (as he is now known) is a fighter and a friend. He meets the lady, Lora McGuire, and an attraction develops. Mac makes friends and joins the battle with his new friend and becomes a true American.