Tonto had remained in camp when the Lone Ranger went to visit his friend, the padre, on a small mission. When the masked man returned to camp, he rode hard, and Tonto knew that something unusual had happened. The padre wants them to complete a mission for him. A man named Tyler was doing missionary work among the Indians, before falling ill and passing away. But before his death he received a letter from a congressman to whom he owes a huge debt...