Desc: The Lone Star Ranger: Directed by Lambert Hillyer. With Tom Mix, Tony the Horse, Billie Dove, Lee Shumway. An outlaw named Duane (Tom Mix), captured by the Texas Rangers, is promised a pardon if he rounds up a gang of cattle thieves. The man he suspects as the leader is revealed to be the father of Duane's sweetheart, Helen (Billie Dove). Duane captures the gang, gets a pardon for Helen's father, and marries Helen.