Publisher's Synopsis
Howard Hawk's final film stars John Wayne as Union Colonel Cord McNally. During the American Civil War, McNally is first captured by and then turns the tables on Confederates Captain Cordova (Jorge Rivero) and Tuscorora (Chris Mitchum). However, when the war ends McNally returns to Texas, where he discovers that an unscrupulous sheriff is conducting a reign of terror in Rio Lobo. He finds himself forced to call upon his former Confederate enemies to help bring the rogue sheriff to justice.